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

<passage>:
Charlie Baxter was like all of the other Prones, only worse. Moran III was sort of an unofficial test for him and he wanted to make good. We had blasted down in the black of night and were waiting for daylight to the casualty rate was with Prones aboard spaceships and now he was beginning to get nervous. Actually Charlie was safer in space than he would be back on Earth with all those cars and people. We could have told him how the Service practically never lost a Prone—they were too valuable and rare to lose—but we did not want him to stop worrying. The precautions we took to safeguard him, the armed men who went with him everywhere, the Accident Prone First Aid Kit with spare parts for him, blood, eyes, bone, nerves, arms, legs, and so forth, only emphasized to him the these people were not malingering or trying to defraud anybody they simply had accidents. everything into consideration—the humidity, their blood sugar, the expression on the other guy's face—and somewhere in the corners and attic of their brain they right choice in any given situation. Then, because they are incapable of trusting themselves, they do exactly the opposite. I felt a little sorry for Charlie Baxter, but I was Captain of the Hilliard and my job was to keep him worried and trying. The worst might have taken for attention if I hadn't known him better. "Sidney were missing. Baxter had left the spaceship and gone off into an alien night. Elliot and Sidney, the guards, were absolutely prohibited from interfering in any way with a Prone's decisions. They merely had to follow him and give their lives to save his, if necessary. Charlie Baxter had less. Lots of things can change on a planet in fifty years, including its inhabitants. Bronoski picked up Baxter's tracks and those of the two guards, Elliot and Sidney, with ultra-violet light. They were cold splotches of green fire against the rotting black peat of the jungle path. The whole dark, tangled mess smelled of sour mash, an intoxicating bourbon-type aroma. 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 Earth. He had grown a slight pot belly on the good food he drew down as satellites, and in contrast to the rest of the group. Elliot Charterson and Sidney Von Elderman were more or less type-cast as brawny, brainless bodyguards. Their friends described them as muscle-bound apes, but other people sometimes got insulting. I began to shake and at the same time to assure myself that I didn't have anything to worry about, that the precious Accident Prone would come out of it alive. After all, Elliot and Sidney were there to protect him. They had machine guns, flame-throwers, atomic grenades, and some really potent weapons. They could handle the situation. I didn't have a thing to worry about. circle about Charlie and his bodyguards. 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 times he could never stay on his feet. Before he could perform his usual pratfall, Sidney and Elliot were at his sides, supporting him by his thin biceps. He glared at them and shrugged them off, informing them wordlessly that he would have 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 couldn't understand each other, but that isn't the way it works. If you "Sure," Charlie said. 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. But the defense didn't work. The other aliens didn't try to get to Baxter, but when they saw Elliot start to interfere with the two writhing opponents, they clawed him down into the grass. Sidney had been set to defend the Prone, not his fellow guard. They might have been all right if he had pulled a few off Elliot and let him get to work, except his training told him that the life of a guard did not matter a twit, but that a Prone must be defended. He started toward Charlie Baxter and was immediately pulled down by a spare dozen of the mob. It all meant one thing to me. The reaction of the crowd had been spontaneous, not planned. That meant that the struggle between Charlie and the spokesman was a high order of single combat with which it was unholy, indecent and dastardly to interfere. 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 was valuable only because he was a misfit. He had decided to take a positive approach. If he did things right, been ground into him since birth and there he was, in trouble as always. Now maybe Bronoski and I could get him out ourselves by a direct approach, but Charlie would probably lose all self-confidence and sink down into accepting himself as an Accident Prone, a purely passive state. We couldn't have that. We had to have Charlie acting and thinking and therefore making mistakes whose bad examples we could profit by. As I lay on my belly thinking, Charlie was putting up a pretty good Naturally Charlie then began wrestling a trained and deadly wrestler instead of continuing to box him. Baxter, his two guards and the native spokesman. 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. While he roused Sidney and Elliot from their punch-drunk state, I examined Charlie. He had a nasty burn on his leg and two toes were gone. If there was an explosion anywhere around, he was bound to be in He was abruptly choking and blinking watery eyes. "You did it, Charlie," I lied. "You beat him fair and square." 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. 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. test of survival. My men learned to call themselves Last Brother in the usual bragging preliminaries that preceded every encounter. We got pretty good results crew a Family and right away we began hitting it off famously. 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. developing a certain amount of doomed self-confidence, but they couldn't be allowed to believe they were infallible Prones. A Prone's value lies in his active and constructive effort to do the right thing. "I have some facts of life to give you, Baxter," I told him. "It is your duty to Prone and doing the work faithfully and according to orders." "Yes, sir," Charlie mumbled.

<question>:
What was the relationship like between Eliott, Sidney and Charlie?

<options>:
A Sidney and Charlie were bound to protect Eliott’s life over their own
B Sidney and Eliott were the captain’s guards who remained unfaithful to Charlie
C Eliott was the medical doctor assigned to Charlie, Sidney was Charlie’s only guard
D Eliott and Sidney were bound to protect Charlie’s life over their own

<answer>:

D