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

<passage>:
their hardships. But the future brings a new grudge—when pioneers stay put and scholars do the exploring! The very young man sat on the edge of the sofa and looked nervous. He The very young man was annoyed. "I don't think I want to go," he blurted. "I don't think I would care to spend two years there." It was the older man's turn to look thoughtful. "You know, I'm sure, that psychologists and research men agree that research stations should be staffed by couples. That is, of course, as soon as it's practical." "But that might be a long time!" the very young man protested. "It might be—but sometimes it's sooner than you think. And the goal is worth it." "I suppose so, but—" The older man smiled. "Still the reluctant heroes," he said, somewhat Chapman stared at the radio key. you couldn't take a shower, couldn't brush your teeth, and your kidneys didn't work right. And for double his salary they thought he'd be glad to stay for another year and a half. Or maybe three. He should probably be glad he had the opportunity. fit of bureaucratic rage. Chapman stuffed a rag under it and ignored face, looked as if he had just squirmed under the tent to his personal idea of heaven. Donley and Bening were lying perfectly still, their covers not mussed, sleeping very lightly. sitting on the side of his hammock. "If it had been me, I would have told them just what they could do about it." "Kind of. Who wouldn't be?" "Well, don't let it throw you. They've never been here on the Moon. They don't know what it's like. All they're trying to do is get a good man to stay on the job a while longer." " All they're trying to do," Chapman said sarcastically. "They've got a fat chance." The others started lacing up their bunks, getting ready for their last day of work on the Moon. In a few hours they'd be relieved by members Klein came back with the coffee. Chapman took a cup, gagged, and forced Donley was warming himself over his cup, looking thoughtful. Dowden and Bening were struggling into their suits, getting ready to go outside. "Nothing very spectacular," Chapman said, smiling. "I'm going to rent Klein looked solemn. "Like Dick, I'll first get rid of my obligations to the expedition. Then I think I'll go home and see my wife." They were quiet. "I thought all members of the groups were supposed to be single," Donley said. "They are. And I can see their reasons for it. But who could pass up The phonograph was a small, wind-up model that Chapman had smuggled in They ran through it twice. They were beginning to feel it now, Chapman thought. They were going to go home in a little while and the idea was just starting to sink in. Chapman stopped them at the lock. "Remember to check your suits for Donley looked sour. "I've gone out at least five hundred times," he said, "and you check me each time." "And I'd check you five hundred more," Chapman said. "It takes only one mistake. And watch out for blisters under the pumice crust. You go through one of those and that's it, brother." Donley sighed. "Chap, you watch us like an old mother hen. You see we and that we stay healthy and happy. I think you'd blow our noses for us if we caught cold. But some day, Chap old man, you're gonna find out that your little boys can watch out for themselves!" But he checked his suit for leaks and tested the valve of his tank before he left. Only Klein and Chapman were left in the bunker. Klein was at the work "Same reason you didn't mention your wife. You get to thinking about it." Chapman was at the port again, staring out at the bleak landscape. "We "Settle down in a small cottage and raise lots of little Chapmans, eh?" Chapman nodded. He put away the box and came over to the port. Chapman moved over so "He died," Chapman said. "He was a good kid, all wrapped up in science. Being on the Moon was the opportunity of a lifetime. He thought so much about it that he forgot a lot of little things—like how to stay alive. The day before the Second group came, he went out to finish some work he was interested in. He forgot to check for leaks and whether or not let them take over cold. They have to know where you left off. They have to know where things are, how things work, what to watch out for. Chapman frowned. "Frankly, I hadn't thought of that. I don't believe when you talked it over among yourselves." "You did, but I don't think Dahl's the man for it. He's too young, too much of a kid. He volunteered because he thought it made him look like a hero. He doesn't have the judgment that an older man would have. That you have." Chapman turned slowly around and faced Klein. "I'm not the indispensable man," he said slowly, "and even if I was, it wouldn't make any difference to me. I'm sorry if Dahl is young. So was He frowned when he thought of Dixon and slid back the catch on the top of the bag and locked it. They should never have sent a kid like Dixon to the Moon. sweat and his eyes were frightened. He moistened his lips slightly. "Do—do you think they'll ever have "No," Chapman interrupted bluntly. "I don't. Not at least for ten He was fumbling it badly, Chapman thought. trying desperately to stop what he was about to do, but just couldn't help himself. "Well, yes, more or less. Oh, God, Chap, I know you want to go home! But I couldn't ask any of the others you were the only one who could, the only one who was qualified!" Dahl looked as though he was going to be sick. Chapman tried to recall to remember such a thing as pride, "you know my father's pretty well fixed. We would make it worth your while, Chap." He was feverish. "It would mean eighteen more months, Chap, but they'd be well-paid months!" Chapman felt tired. The good feeling he had about going home was slowly anybody. Long after going home, Dahl would remember this. It would eat at him like a cancer. Cowardice is the one thing for which no man ever forgives himself. Donley was eating a sandwich and looking out the port, so, naturally, Chapman was standing in front of it. "Check your suits," he said Chapman and Klein watched them dash across the pumice, making the noticed one—it was probably Donley—pat the ship affectionately before he started back. the bunker, taking off their suits. The newcomers were impressed and solemn, very much aware of the tremendous responsibility that rested on their shoulders. Like Donley and Klein and the members of the Second Chapman cut off a single blade with his fingernail and put it between embarrassed. Chapman sympathized. If he had had any sense, he'd have tried to smuggle something like that up to the Moon instead of his phonograph. One of the men separated from the group and came over to Chapman. He Chapman nodded and shook hands. They hadn't had a captain on the First at Chapman. Chapman jerked a thumb toward Dahl. "Ask him. He's in charge now." Chapman nodded. "They could use a little privacy up here." they'd like to see you stay. They feel if they're going to enlarge it, add more bunkers and have more men up here, that a man of practical experience should be running things. They figure that you're the only man who's capable and who's had the experience." The captain vaguely felt the approach was all wrong.

<question>:
Why does Chapman always inspect the men's equipment before they go outside?

<options>:
A He doesn't want them to join Dixon
B He's gone a little crazy from being on the moon too long
C It's his assigned duty
D He doesn't think they can look after themselves

<answer>:

A