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

<passage>:
"Nothing around those other suns but ashes and dried blood," old Dunbar told the space-wrecked, desperate men. "Only one way to go, where we can float down through the remain sane in all this blackness much longer. Bitterly he thought of how they would die—not knowing within maybe thousands of light years where they were, or where they were going. Dunbar, the oldest of the four, an old space-buster with a face where they were going. They could talk to one another through the etheric transmitters inside electric power. Each suit had its own power-plant, reprocessing continuously the precious air breathed by the occupants, putting it back into circulation again after enriching it. Packed with food concentrates. Each suit a rocket, each human being part of a rocket, Dunbar was as crazy as a Jovian juke-bird. long an interim that had been. Nobody knew what happened to a man who suffered a space-time warping like that. When they had regained that they were millions of light years from any place he had ever heard about, where the galactic space lanterns had absolutely no Dunbar's suit up ahead, watching it more and more intently, thinking about how Dunbar looked inside that suit—and hating Dunbar more and more for claiming he knew when he didn't, for his drooling optimism—because he was taking them on into deeper darkness and calling their destination Paradise. of the old man. Sometimes he thought about the ship, lost back there in the void, and he wondered if wrecked space ships were ever found. Compared with the universe in which one of them drifted, a wrecked ship was a lot smaller than a grain of sand on a nice warm beach back thought then of what Dunbar would say to such a thought, how Dunbar would laugh that high piping squawking laugh of his and say that the human being was bigger than the Universe itself. Dunbar had a big answer for every little thing. When the four of them had escaped from that prison colony on a sizzling hot asteroid rock in the Ronlwhyn system, that wasn't enough for Dunbar. Hell no—Dunbar had to start talking about a place they world like the Earth had been a long time back. And Dunbar had spouted endlessly about a world of treasure they would find, if they would just follow old Dunbar. That's what all four of "That's right, boys!" yelled old Dunbar in that sickeningly optimistic Dunbar?" Russell asked. Keep the old duck talking like this and maybe "Yeah," said Alvar. "You still say that, Dunbar?" "No life, boys, nothing," Dunbar laughed. "Nothing on these other worlds but ashes ... just ashes and iron and dried blood, dried a million years or more." when we had an old ship called the DOG STAR that I was here. A pirate we'll reach the right one. And that one's just like Paradise." "Paradise is it," Russell whispered hoarsely. "Paradise and there we'll be like gods, like Mercuries with wings air we can breath, and water we can drink and shade we can rest in—that'll be paradise enough for us. But it'll take a long time won't it? And what if it isn't there—what if after all the time we spend hoping and getting there—there won't be nothing but ashes and cracked clay?" "We're heading to the right one, boys. Don't doubt me ... I been here. We explored all these sun systems. And I remember it all. The second was to get rid of Dunbar. "Lost people ... lost ... who knows how long," Dunbar said, as the on a world somewhere nobody's ever named or knows about. Places where a lost ship's landed and never got up again, or wrecked itself so far off the lanes they'll never be found except by accident for millions of years. That's what this world is, boys. Must have been a ship load Johnson said. "Dunbar—how long'll it take us?" "We'll make it, boys. Trust ole' Dunbar. What's a year when we know it's paradise ain't it, compared with that prison hole we were rotting in? We can make it. We have the food concentrates, and all the rest. All we need's the will, boys, and we got that. The whole damn Universe isn't big enough to kill the will of a human being, boys. I been over way. An' pretty soon something breaks, or the food runs out, and you're a million million miles from someplace you don't care about any more because you're dead. All frozen up in space ... preserved like a piece of meat in a cold storage locker. And then maybe in a million years or so some lousy insect man from Jupiter comes along and finds you and takes you away to a museum...." "Shut up!" Johnson yelled. stick to old Dunbar and he'll see you through. I'm always lucky. Only couldn't have been over a day or two of the kind of time-sense he had inherited from Earth. ashes, and not able to go any further—" "I always come through, boys. I'm lucky. Angel women will take us to ," said Alvar. It was quiet. How could it be so quiet, Russell thought? And up ahead the old man's pressure suit with a corpse inside "Maybe he was wrong," Alvar said. "But now do we know which way is right?" know what to do?" "I always had a feeling we were going wrong," Johnson said. "Anyway, it's forgotten, Russ. It's swallowed up in the darkness all around. It's never been." because he was alone. He'd have broken away, gone his own direction, long ago but for that fear. "How can we tell which of us is right?" Alvar said. "It's like said. "Maybe a guy could get to the point where he'd sleep most of the time ... just wake up enough times to give himself another boost with the old life-gun." intelligent life, maybe even a ship, and whoever gets the right star can come and help the other two...." "No ... God no...." Russell whispered over and over. "None of us can once you're going, you never stop ... and I guess there isn't any other body to pull him off his course. And what will time matter to old Dunbar? Even less than to us, I guess. He's dead and he won't closed his eyes. "Maybe," he thought, "I shouldn't have killed the old man. Maybe one sun's as good as another...." Then he raised his body and looked out into the year of blackness that waited for him, stretching away to the red-rimmed sun. Even if he were right—he was sure now he'd never make it alone. The body inside the pressure suit drifted into a low-level orbit around the second planet from the sun of its choice, and drifted there a long time. A strato-cruiser detected it by chance because of the strong concentration of radio-activity that came from it. They took the body down to one of the small, quiet towns on the edge of one of the many blue lakes where the domed houses were like bright joyful jewels. They got the leathery, well-preserved body from the pressure suit. sectors. I wonder how and why he came so very far from his home?" "Wrecked a ship out there, probably," one of the others said. "But he managed to get this far. It looks as though a small meteor fragment pierced his body. Here. You see?" "Yes," another of them said. "But what amazes me is that this old man picked this planet out of all the others. The only one in this entire sector that would sustain life." "Maybe he was just a very lucky old man. Yes ... a man who attains he is ... wherever he came from, he died bravely and he knew the way, though he never reached this haven of the lost alive."

<question>:
What is the role of the pirate ship story that Dunbar tells?

<options>:
A It proves that he knows where he's going and he had the right choice all along
B It is a fantastic story meant to keep the crew entertained while floating in space
C It points to who will rescue his body when he arrives at the planet
D It helps to clarify what is true for the reader when the aliens find his body

<answer>:

D