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

<passage>:
blood," old Dunbar told the space-wrecked, desperate men. But Dunbar's eyes were old and uncertain. How could they After the wreck, the four of them had floated a while, floated and drifted together, four men in bulbous pressure suits like small individual rockets, held together by an awful pressing need for each 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 never been any sound or life, with old Dunbar the first in line, taking the lead because he was older and knew where he was and where he was going. Maybe Johnson, second in line, and Alvar who was third, knew too, but were afraid to admit it. But Russell knew it and he'd admitted it from the first—that old Dunbar was as crazy as a Jovian juke-bird. How long ago that had been, Russell didn't know. All Russell knew was recognizable pattern. But Dunbar knew. And Russell was looking at Dunbar's suit up ahead, watching it more and more intently, thinking about how Dunbar looked inside that suit—and hating Dunbar more and repeat. Sometimes Russell thought of other things besides his growing hatred 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 Dunbar had a big answer for every little thing. for Dunbar. Hell no—Dunbar had to start talking about a place they 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 now, Russell thought—if it weren't for old crazy Dunbar. They might have a chance if Alvar and Johnson weren't so damn lacking in self-confidence as to put all their trust in that crazed old the wrong direction. No reason for knowing. Just a hunch. And Russell "We're about in the middle of those four suns aren't we, Dunbar?" Russell said. "That's right, boys!" yelled old Dunbar in that sickeningly optimistic voice. Like a hysterical old woman's. "Just about in the sweet dark old middle." life on it, Dunbar ... the only one we can live on?" Russell asked. "That's right! That's right," Dunbar yelled. "That's the only one—and Dunbar?" Russell asked. Keep the old duck talking like this and maybe Alvar and Johnson would see that he was cracked. "Yeah," said Alvar. "You still say that, Dunbar?" "No life, boys, nothing," Dunbar laughed. "Nothing on these other said that one had a red rim, Dunbar, and I wanted to believe it. So Old Dunbar laughed. The sound brought blood hotly to Russell's face. angels singing and dancing and laughing with red lips and arms white as milk, and soft silky hair floating in the winds." Russell was very sick of the old man's voice. He was at least glad he didn't have to look at the old man now. His bald head, his skinny bobbing neck, his simpering watery blue eyes. But he still had to I'd break away, go it alone to the right sun, Russell thought—but I'd than old Dunbar will ever be, even if he keeps on getting nuttier all was to get rid of Dunbar. "Lost people ... lost ... who knows how long," Dunbar said, as the always spring, always spring, boys, and the music plays all night, every night of a long long year...." Russell suddenly shouted. "Keep quiet, Dunbar. Shut up will you?" Johnson said. "Dunbar—how long'll it take us?" "What?" croaked Alvar. Johnson didn't say anything at all. Russell screamed at Dunbar, then quieted down. He whispered. "Six months to a year—out here—cooped up in these damn suits. You're crazy as hell, Dunbar. Crazy ... crazy! Nobody could stand it. We'll a whole lot of it, and I know. In the old days—" "The hell with the old days," screamed Russell. "Now quiet down, Russ," Dunbar said in a kind of dreadful crooning things the way we used to. Thing is, we got to go straight. People trapped like this liable to start meandering. Liable to start losing the old will-power." He chuckled. "Yeah," said Alvar. "Someone says maybe we ought to go left, and "Shut up!" Johnson yelled. Dunbar laughed. "Boys, boys, don't get panicky. Keep your heads. Just stick to old Dunbar and he'll see you through. I'm always lucky. Only Then he saw how the other two stars also were beginning to develop red rims. He yelled this fact out to the others. And Alvar said. "Russ's motion. Dunbar laughed. "Sure, they all maybe have a touch of red, but it isn't the same, boys. I can tell the difference. Trust me—" Russell did it before he hardly realized he was killing the old man. Dunbar. If he'd aimed right, Russell knew the fire-bullet should have pierced Dunbar's back. Now the fire was gone, extinguished automatically by units inside the suit. The suit was still inflated, self-sealing. Nothing appeared to have changed. The four of them of the gravity rope, Dunbar was dead. Dunbar's last faint cry from inside his suit still rang in Russell's ears, and he knew Alvar and Johnson had heard it too. Alvar and Johnson both called Dunbar's name a few times. There was no answer. "I did it for the three of us," Russell said. "It was either him or us. "How could he see any difference in those four stars?" Russell said, louder. And Alvar said, "Guess he was crazy all right, and I guess we trusted him because we didn't have the strength to make up our own minds. Why does a crazy man's laugh sound so good when you're desperate and don't know what to do?" Russell said, "I've had a hunch all along that maybe the old man was matter to me." 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 everything was changing all the time out here. Sometimes I'd swear none of those suns had red rims, and at other times—like the old man "We been going away from the right one all the time," said Alvar. "We got to stay together," said Russell. "Nobody could spend a year out here ... alone...." "Ah ... in another month or so we'd be lousy company anyway," Alvar be right seeing as how we all agree the old man was wrong. But we believe there is one we can live by, because we all seem to agree that the old man might have been right about that. If we stick together, the chance is three to one against us. But if each of us makes for one "No ... God no...." Russell whispered over and over. "None of us can ever make it alone...." right." Johnson started to laugh. Russell was yelling wildly at them, and above his own yelling he could hear Johnson's rising laughter. "Every guy's got a star of his own," Johnson said when he stopped laughing. old Dunbar? Even less than to us, I guess. He's dead and he won't he would share with no one. Not even crazy old Dunbar. Russell felt the release, felt the sudden inexplicable isolation and And old Dunbar shooting right on ahead. And all three of them dwindling and dwindling and blinking out like little lights. Fading, he could hear their voices. "Each to his own star," Johnson said. "On a bee line." "On a bee line," Alvar said. Russell used his own life-gun and in a little while he didn't hear Russell's head fell forward against the front of his helmet, and he

<question>:
Which of these was not an impact of Russell's decision to kill Dunbar?

<options>:
A Russell would have to travel alone
B He was able to pick the path to the correct sun
C It became quieter in general
D Arguments increased amongst the team

<answer>:

B