Read the following passage and questions, then choose the right answer from options, the answer should be one of A, B, C, D.

<passage>:
having a rookie Accident Prone, half-starved from the unemployment lines, aboard my spaceship. They are always so anxious to please. They has a very low life expectancy on Earth due to the automobiles they are constantly stepping in front of and the live wires they are fond of picking up so the street won't be littered. The Admiralty, however, is a very thorough group of men. Before they open a planet to colonization or even fraternization, they insist on knowing just what they are up against. Accident Prones can find out what is wrong with a planet as easily planet and a Prone will be knee-deep in it within an hour of blastdown. If an alien race will smile patronizingly on your heroic attempts at genocide, but be offended into a murderous religious frenzy if you blow your nose, you can take the long end of the odds that the Prone will begin our re-survey of the planet. It was Charlie's first assignment, Actually Charlie was safer in space than he would be back on Earth companies on Earth discovered them when they found out in the last part of the nineteenth century that ninety per cent of the accidents were happening to a few per cent of the people. They soon found out that everything into consideration—the humidity, their blood sugar, the expression on the other guy's His clumsiness back on Earth had cost him every decent job he ever had. He had come all the way down the line until he was rated eligible only for the position of Prone aboard a spaceship. He had been poor—hungry, cold, wet, poor—and now he had luxury of a kind almost no one had in our era. He was drunk with it, passionately in love with it. It would while Bronoski fired questions at my back. Three translator collars were missing. Baxter had left the spaceship and gone off into an alien worry about radiation leak, although they are supposed to be guaranteed perfectly shielded. I read that before the last exploration party had left, they had made the Moranite natives blood brothers. Then Bronoski knocked me down. down. He didn't. I could see through the stringy, alcoholic grass fairly well and there were Baxter, Elliot and Sidney in the middle of a curious mob of aliens. Charlie Baxter had got pretty thin on his starvation diet back on muscle-bound apes, but other people sometimes got insulting. The natives were less formidable. They made the slight lump of fat Charlie had at his waist look positively indecent. The natives were skinny thin didn't mean they were pushovers. Whips and garrotes aren't fat and these looked just as dangerous. Whenever I see aliens who are so humanoid, I remember all that Sunday supplement stuff about the Galaxy being colonized sometime by one humanlike race and the Ten Lost Tribes and so forth. They didn't give me much time to think about it just then. The natives looked unhappy—belligerently unhappy. So why couldn't I stop shaking? Maybe it was the way the natives were slowly but deliberately forming a circle about Charlie and his bodyguards. understandable. They had a non-mechanical civilization with scattered colonies that it would take a terrestrial season to tour by animal cart. Then Charlie shouldn't have any trouble if he stuck to the findings on behavior in the report. Naturally, that meant by now he had discovered the fatal error. The three men were just standing still, waiting for the aliens to make the first move. The natives looked just as worried as Charlie and his guards, but then that might have been their natural expression. I jumped a little when the natives all began to talk at once. The mixture of sound was fed to me through my translator collar while the cybernetic unit back on board the spaceship tried decoding the words. It was too much of an overload and, infuriatingly, the sound was cut Baxter swallowed and started forward to meet the alien halfway. His all of us as your brothers?" "All beings are brothers," Charlie said. "We were made blood brothers by your people and my people several hundred of your years ago." Charlie's words were being translated into the native language, of course, but Bronoski's collars and mine switched them back into Terrestrial. I've read stories where explorers wearing translators couldn't understand each other, but that isn't the way it works. If you listen closely, you make out the words in your own language underneath, differences in the original words and the echo translated back from a native language. I was trying to catch both versions from Charlie. I knew he was making cautiously. "Enough of this," the native said sharply. "Do you claim to be my brother?" "Sure," Charlie said. Dispassionately but automatically, the alien launched himself at the Prone's throat. Charterson and Von Elderman instantly went into action. Elliot Charterson jumped to Charlie's assistance while Sidney Von Elderman swung around to protect Charlie from the rest of the crowd. The other aliens didn't try to get to Baxter, but when they saw Elliot defended. He started toward Charlie Baxter and was immediately pulled spontaneous, not planned. That meant that the struggle between Charlie I had a nice little problem to contend with. I knew the reason Baxter had slipped out at night to be the first to greet the aliens. He was determined to be useful and necessary without fouling things up. I suppose Charlie had never felt valuable to anyone before in his life, but at the same time it hurt him to think that he approach, but Charlie would probably lose all self-confidence and sink We couldn't have that. We had to have Charlie acting and thinking and Naturally Charlie then began wrestling a trained and deadly wrestler of fissionable material and just keeping them from uniting and making a critical mass that will result in an explosion or lethal radiation. I caught my oldest boy doing it one day back on Earth and gave him a I heard something that resembled a death rattle come from Charlie's throat as the fingers of the alien closed down on it and my hand enough to do any real damage. The natives weren't fools, though. They got out of there fast. I wished I could have gone with them. There was undoubtedly an unhealthy amount of radiation hanging around. Charlie and the native were both technically unconscious, but they each had a stranglehold on each other, with Charlie getting the worst of it. Bronoski pried the two of them apart. Charlie was in bed for the next few days while his grafted toes grew on, but he didn't seem to mind. We knew enough not to use the blood-brothers approach after fifty years and therefore it did not take us long to find out why we shouldn't. The Moran III culture was isolated in small colonies, but we had forgotten that a generation of the intelligent life-forms was only three Earth months. It seems a waste at first thought, but all things a lot of variables introduced, resulting in change. The idea that seemed to be in favor was the survival of the fittest. Since the natives were born in litters, with single births extremely rare, this concept was practiced from the first. Unless they were particularly cunning, the runts of the litter did not survive the first year and rarely more than one sibling ever saw adulthood. Obviously, to claim to be a native's brother was to challenge him to a test of survival. My men learned to call themselves Last Brother in the usual bragging one, whom they could handle themselves. They still had folk legends about the previous visit of Earthmen and they didn't trust us. Charlie Baxter's original mistake had supplied us with the Rosetta Stone we needed. active and scheming to stay alive. More beneficial accidents that way. Actually, most Prones died of old age in space, which is more than could be said of them on Earth, where they didn't have the kind of protection the Service gives them. Charlie's pale eyes narrowed as if he had just made a sudden discovery,

<question>:
Why was the approach that Charlie took to engage with the aliens unsuccessful?

<options>:
A The aliens killed their siblings and so to claim to be a brotherhood was perverse
B Charlie forgot the knowledge in the report to refer to the aliens as brothers
C The aliens couldn’t understand the language that Charlie was speaking
D The aliens believed there was a blood relation between them and the people from Earth

<answer>:

A