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

<passage>:
When a ship is working perfectly and is operated by a hand-picked crew of highly trained men in perfect condition, how often is it wrecked is the one you don't know is loaded. one after another in defiance of The single Chingsi wrecked our ship and planetful of them do? precipice it fingered and wrenched to be chancy. No matter how highly developed it can't be surefire. The proof is that I've survived to tell the tale." Hennessy began to inch his way up the north face of Mount Everest. THE END Transcriber's Note: walked, nothing talked. But the success. It's well on the cards that out. I'm fine where I am. I'll just lie here for a while and relax, and get some of the story on tape. This suit's got a built-in recorder, I might as well use it. That way even if I'm not as well as I feel, I'll leave a message. You probably know we're back and wonder what went wrong. Whale honor, being picked for the first long "You'll want to know if the ship worked. Well, she did. Went like a bomb. We got lined up between Earth and Mars, you'll remember, and James pushed the button marked 'Jump'. Took his finger off the button Alpha Centauri Whale doubt if it was the ship itself that fouled things up. "That was some survey assignment. We astronomers really lived. Observatory, back of the Moon, just back from a proving flight cum astronomical survey in the starship Whale . Whoever you are who finds this tape, you're made. Take it to any radio station or newspaper office. and don't take any wooden nickels. "Where had I got to? I'd told you how we happened to find Chang, hadn't I? That's what the natives called it. Walking, talking natives on a blue sky planet with 1.1 g gravity and a twenty per cent oxygen atmosphere at fifteen p.s.i. The odds against finding Chang on a six-sun survey on the first star jump ever must be up in the googols. We certainly were lucky. "The Chang natives aren't very technical—haven't got space travel for instance. They're good astronomers, though. We were able to show them our sun, in their telescopes. In their way, they're a highly civilized If you doubt it, chew these facts over. "One, they learned our language in four weeks. When I say they, I mean a ten-man team of them. had aboard the Whale humor. Ran rather to silly practical "Four, the ten-man language team also learned chess and table tennis. "It was funny the way they won we played them and that's fatal in chess. Of course it's a screwy situation, playing chess with something pets, but you didn't feel like patting I knew best. He was called—well, we called him Charley, and he was the ethnologist, ambassador, contact man, or whatever you like to call him, who came back with us. Why I disliked him was because he was always trying to get the edge on you. All the Whale's was a cabin full of dead and dying men, more than that when I land. What's final velocity for a fifty-mile fall? same as escape I expected though. Almost seem to be floating. Let's switch on the radio and tell the world hello. Hello, earth ... hello, again ... and good-by ... is that the suit ran out of the emergency tank, thank the Lord, "I was telling about the return journey, wasn't I? The long jump back home, which should have dumped us between the orbits of Earth and Mars. Instead of which, when James took his finger off the button, the mass-detector showed nothing "We were out in that no place for a day. We astronomers had to establish our exact position relative to the solar system. The crew had to find out exactly what went wrong. The physicists had to make mystic passes Our task was easy, because we were about half a light-year from the sun. The crew's job was also easy: they found what went wrong in less than half an hour. "It still seems incredible. To program the ship for a star-jump, you merely told it where you were and where you wanted to go. In practical terms, that entailed first a series of exact measurements which had to be translated into the somewhat abstruse co-ordinate system we used based on the topological order of mass-points in the galaxy. Then you cut a tape on the computer and hit the button. Nothing was wrong with the and we'd gone to the place we'd aimed for. All we'd done was aim for the wrong place. It hurts me to tell you this and I'm just attached personnel with no space-flight tradition. In practical terms, one highly trained Incredible, but that's what why we were out there so long. They were cross-checked about five times. I got sick so I climbed into a spacesuit density in the outer regions. When I got back everything was ready. We disposed ourselves about the control worth. We were all praying that this time nothing would go wrong, and all looking forward to seeing Earth again after four months subjective time away, except for Charley, who to tear Charley limb from limb. Then was the Whale ship ever built, which could cover For, as of course you know, the star-drive couldn't be used again for at least two hours. "The Whale of course, the standard deuterium-fusion thing with direct conversion. As again you know, this is good for interplanetary flight because you can it has rather a low thrust. It would deflect us enough to avoid a smash. We had five minutes to abandon ship. "James got us all into the Minnow at a dead run. There was no time to was meant for short heavy hops to planets or asteroids. In addition to the ion drive it had emergency atomic rockets, canceled our downwards velocity with them in a few seconds. We curved away up over China and from about fifty miles high we saw the Whale hit the Pacific. Six hundred tons of mass at well over two thousand miles an hour make an almighty splash. By now you'll have divers with the ship, as the saying is? Not have broken his heart to know that his lovely ship was getting the chopper. Or did he suspect another human the huge curved shield of precipice around me every way but one and that's up. So it's up I'll have to go till I find a way to go down. there I stick. Listened to it for fifteen minutes just to hear a human voice again. I haven't much hope of reaching anyone with my five milliwatt suit transmitter but I'll keep trying. "Just before I start the climb there are two things I want to get on tape. The first is how I got here. I've remembered something from my military training, when I did some parachute jumps. Terminal velocity for a worn but still operational. I'm fine. "The second thing I want to say is about the Chingsi, and here it is: watch out for them. Those jokers are dangerous. I'm not telling how because I've got a scientific reputation to watch. You'll have to figure it out for yourselves. Here are the clues: (1) The Chingsi talk and laugh but after all they aren't human. On an alien world a hundred light-years it, might be highly developed out there. (2) The Whale expedition did fine till it found Chang. Then it hit a seam of bad luck. Real stinking bad luck that went on and on till it looks fishy. We lost the ship, we lost the launch, all but one of us lost our lives. We couldn't even win a game of ping-pong. "So what is luck, good or bad? Scientifically speaking, future chance future chance events won't go your way. Scientific investigations into this knows that some people are lucky and others aren't. All we've got are hints and glimmers, the fumbling touch of eye legend and the Jonah, bad luck enough. "All the same, search the space-flight records, talk to the actuaries.

<question>:
What was the mission of the Whale?

<options>:
A The mission is to make peace with Alpha Centauri.
B The mission is to invade Chang.
C The mission is a test flight and astronomical survey.
D The mission is to make contact with Chang.

<answer>:

C