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

<passage>:
THE STOKER AND THE STARS BY JOHN A. SENTRY crewmen went down on the field to handle the unloading. Jeks on self-propelled cargo lifts jockeyed among him? Yes, I know him— him. That was twenty years ago. Everybody knows The stoker was coming down on one arm curled up over his head and around the hoist cable. He was in his dusty brown Marine uniform, the scarlet collar tabs bright as blood at their saddles and watched him come down. When the sling touched the ground, he jumped off quietly and all followed him with their eyes. "We've got to stop him," Mac when the stoker was a few paces away. The stoker stopped, too. All the Jeks were watching him and paying no attention to anything else. The except for those two. "They'll kill him. They'll kill him before that," the stoker said. "I was to carry on our little concerns, and mind our manners. The Jeks and the The stoker nodded, and they walked over to his vehicle together. They drove away, toward the Jek ship. "All right, let's get back to work," another Jek said to MacReidie and didn't bother them. We liked it that way. Understand The stoker came back to our ship "I'm signing off the ship. Going with the Jeks." MacReidie was with me. He said loudly: "What do you mean, you're going with the Jeks?" "I signed on their ship," the stoker said. "Stoking. They've got a micro-nuclear make out all right, even with the screwball way they've got it set up." "Huh?" The stoker shrugged. "Ships are "What kind of a deal did you make with them? What do you think you're up to?" The stoker shook his head. "No deal. I signed on as a crewman. I'll do a crewman's work for a crewman's wages. I thought I'd wander around a while. It ought to be interesting," he said. "On a Jek ship." "Anybody's ship. When I get to walking up to us. we're short on is stokers." out with some people from farther such thing as a stoker any more, with on. Why not? It's honest work." "Got a job?" he asked, looking at head. "Not for you. The only thing an evacuated engine room. The leaking metal and rots lungs. So the engine took off in the morning. The stoker and the stokers who tended the dials had already left on the Jek ship, and wear suits, smelling themselves for it turned out he'd trained an apprentice boy to take his place. twelve hours at a time and standing a good chance of cooking where they "I'll stoke." their glasses, waiting for night to fall so they could go out into the alleys and have drunken fights among themselves. But he had brought that kept signing on with whatever ship was going deeper into the galaxy, going farther and farther. He messed to people. Nobody could. He just his head to me. "I'll stoke," he repeated. six legs—after all, ships are ships and I—almost all of the men in the Merchant Marine—hadn't and they've all got to have something to push them along. If a man knows ships dying on the runs—we'd had atmosphere will do, as long as there's our own brushes with commerce raiders, and we'd known enough men their ships and, I suppose, fix them when they were in trouble. I wonder if he sang dirty songs in that bad voice of his, to people who couldn't bucko, you'll stoke. Go and sign on." quietly away. He wrapped a hand around the cable on a cargo hook and rode into the hold on top of some looking out at the stars you're moving toward. I wonder if it mightn't have kept my old captain out of that Serenus the stoker for—the thing that makes him famous, and, I think, annoys him—I'm fairly sure is only loaded and buttoned up that Mac and I even spoke to each other —officers and crew. Even so, we had to sleep in shifts, with the ship's designers giving ninety per cent of her space to bunk. What I meant was, empty during my sleep shift. That meant he and I'd be sharing work shifts—me up in the control blister, parked in a soft chair, and him down in the engine room, broiling in a suit for twelve hours. But I ate with him, used the head with him you can call that rubbing elbows with greatness, if you want to. He was a very quiet man. Quiet in the way he moved and talked. When we were both climbing into our bunks, that first night, I introduced myself and he introduced himself. Then he heaved himself into his bunk, rolled over on his side, fixed his straps, and fell asleep. He was always friendly toward me, but he grew older in the bars. I wonder, now, if he really did do anything the foot of the stoker's bunk. "That new stoker," Mac said. the stoker. The mark was on him, as going out to trade with his sworn enemies! Why do you suppose he wanted to sign on? Why do you suppose he's so eager to go!" "You think he's going to try to start something?" "Think! That's exactly what he's down—do you suppose they'll stop with him? They'll kill us, and then they'll go in and stamp Earth flat! You know it as well as I do." None of us wanted trouble—not even Mac, but he'd cause it to get rid of it, if you follow what I mean "The stoker's jamming the circuit." —so there we were at a million per, and the air was gettin' thick. The Skipper says 'Cheer up, brave boys, we'll—' " He was singing. He had a terrible voice, but he could carry a tune, and he was hammering it out at the top of his lungs. " were ... " The crew were chuckling into their own chest phones. I could hear Daniels trying to cut him off. But he kept going. I started laughing myself. No one's supposed to jam an intercom, but it made the crew feel good. When the crew feels good, the ship runs right, and it had been a long time since they'd been happy. He went on for another twenty minutes. Then his voice thinned out, and I heard him cough a little. "Daniels," he said, "get a relief Jump to it! " He said the last part in a Master's voice. Daniels didn't ask questions. He sent a man on his way down. He'd been singing, the stoker had. He'd been singing while he worked with one arm dead, one sleeve ripped open and badly patched because the He went down to sick bay, got the arm wrapped, and would have gone back on shift if Daniels'd let him. Those of us who were going off shift found him toying with the it sounded like a dog howling. "Sing, will you!" somebody yelled. He grinned and went back to the "Good Ship Venus and that got us off into sentimental things, the way these sessions would sometimes wind up when spacemen each other, and we all began drifting out of the mess compartment. And maybe it got to him, too. It middle of taking off his shirt. He stood there, looking out the porthole, and forgot I was there. I heard him reciting something, softly, under his And the universe waits, dreaming. " " The song that roars where the rocket soars He shook himself like a dog out of cold water, and got into his bunk. I got into mine, and after a while have told the skipper about the stoker, is. And the stoker had saved the the stoker, or anyone else and the stoker, was that it would have meant trouble in the ship. Trouble, confined to our little percentage of the ship's came out of his post after we'd waited for a while, and gave us our permit to disembark. There was a Jek

<question>:
What does the stoker do on the ship to ease the tension?

<options>:
A He keeps to himself.
B He recites poetry.
C He sings.
D He jokes with the crew.

<answer>:

C