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

<passage>:
Revolt was flaring on Callisto, and Peter Duane Duane's hand flicked to his waist and hung there, poised. His dis-gun win that way, so let's leave the guns where they are." He said, "Duane, Andrias is your boss, not mine. I'm a free lance Duane said, "Do I have to kill you?" It was only a question as he asked Leave Andrias out of our private argument." "Forget what I think," Stevens said, his voice clipped and angry. "I don't care about fairness, Duane, except to myself. I've done all the Duane stared at him a long second, then nodded abruptly. "I was right Already his hand was streaking toward the grip of his dis-gun, touching swept up and pinioned Duane, holding him impotent. "Don't be a fool," he grated. "Duane—" heard it. Duane lunged forward into the taller man's grip, sliding down on Peter's gun arm, but Peter was slipping away. Belatedly, Stevens went for his own gun. He was too late. Duane's was out and leveled at him. will you listen to reason?" Duane panted. But he halted, and the "Course change!" gasped white-haired Stevens. "Good God!" But the two men had not heeded. And the lights went out in a burst of crashing pain for Peter Duane. stimulant, to help you throw off the shock of your—accident. You're all right, otherwise." Duane screwed his eyes tight together and grimaced. When he opened Duane shook his head confusedly. "I don't know anything," he said. "Duane, Duane," a man's heavy voice said. "That won't wash. Don't play "Duane?" he said. "Duane...." He swiveled his head and saw a dark, The dark man laughed. "Take your time, Duane," he said easily. "You'll remember me. My name's Andrias. I've been waiting here for you to wake The nurse, still eyeing Duane with an odd bewilderment, said: "I'll leave you alone for a moment. Don't talk too much to him, Mr. Andrias. "I won't," Andrias promised, grinning. Then, as the girl left the room, "You play rough, Duane," he observed. "I thought you'd have trouble Duane waved a hand and pushed himself dizzily erect, swinging his legs Andrias straightened, turned a darkly-suspicious look on Duane. "Don't There was an instant's doubt in Andrias' eyes, then it flashed away. He bent closer, peered at Duane. "I almost think—" he began. That's your last chance that just went by, Duane. From now on, I'm "Duane here is resisting arrest," Andrias said. "Take him along. We'll "You can't do that," Duane said wearily. "I'm sick. If you've got Whoever this man Andrias was, thought Duane, he was certainly a man of Duane off without a word. Duane had thought the nurse, who seemed a while the two uniformed men shoved Duane into the back of the car, climbed in beside him. Andrias gave a curt order, and the car shot The driver, sitting beside Andrias, leaned forward and readied a hand they seemed dreamlike yet somehow oddly familiar to Duane. Somewhere the memories that he should have had. Amnesia, they called it forgetting of the happenings of a lifetime. He'd heard of it—but never supplied to Duane. There has even been talk of killing.... But—murder! Duane looked at his hands helplessly. Andrias, up ahead, was turning around. He looked sharply at Duane, for "Who's this man Andrias?" Duane whispered to the nearest guard. But the chance was a long time in coming. Duane found himself, an hour had brought him there, at Andrias' order, and left him. That had been and frescoed walls. Duane wished for human companionship—particularly deadly. It was too bad, Duane reflected, that he'd failed to remember Duane sat down on a lumpy, sagging bed and buried his head in his Andrias is secretly Duane could remember the scene clearly. Could almost see the sharp, keeps perpetually averted from Earth, as if the moon knows shame and unfrequented side streets to a great windowless building. Duane And that memory ended. Duane got up, stared at his haggard face in the cracked mirror over ," he thought. " Apparently I'm a "All right, Duane." The deep voice of a guard came to him as the door Duane looked around. The guard beckoned. "Governor Andrias wants to a great heavy desk—that was Andrias' office. Duane felt a click in his just such a psychological trick to overawe those who came to beg favors of him. Muslini, or some such name. The trick failed to work. Duane had other things on his mind handed it to Duane. "In spite of your behavior, you can keep alive. patience, Duane." Duane said, without expression, "No." Dark red flooded into Andrias' sallow face. His jaws bunched angrily "I'll have your neck for this, Duane," he said softly. Duane looked at the man's eyes. Death was behind them, peeping out. Mentally he shrugged. What difference did it make? handed the paper to Duane without a word. He gave him a pen, watched Andrias' eyes widened. "You amaze me, Duane," he said. He rose and stepped around the desk, confronting Duane. "I almost think you really have lost your memory, Duane," he said. "Otherwise, surely you would Duane said, "You're ready, then...." Duane saw his danger, and reacted. His foot twisted around Andrias' head pin-wheeled dizzily, agonizingly, as the jar revived the pain of his earlier accident. But Andrias, unconscious already, tumbled back with Duane on top of Duane got up, retrieving the two heat guns, and stared at him. They tell me I killed Stevens the same way Duane stepped over the unconscious man and looked around the room. It whole arsenal of hand guns, Callistan money by the bale, ominously Duane took the release he had signed and tore it to shreds. But that was only a gesture. When Andrias came to, unless Duane had managed to When Andrias came to.... An idea bloomed in Duane's brain. He looked, then, at unconscious Andrias—and the idea withered again. He had thought of forcing Andrias himself to front for him, at gun's who lose them. Andrias' throat was speckled with the livid marks of Duane's fingers Duane's head, butting Andrias in the face, had drawn a cooperate by the threat of a gun. Which, considering the stake Andrias Duane touched the heat gun he'd thrust into his belt Andrias now, in cold blood, with so much to gain and nothing to lose? He stood there a moment. Then, abruptly, he reversed the weapon and chopped it down on Andrias' skull. and did not reappear. ," Duane thought. " But Duane's arm was around his throat, and he had no breath to spare. Duane's foot lashed out and the door slammed shut Duane's balled left Duane took a deep breath and let the man drop to the floor. But he Tugging and straining, he got the limp form of Andrias into his own then, the fact of Andrias' unconsciousness might not be noticed.

<question>:
Why does the amnesia change Duane's mind about letting Andrias have the guns?

<options>:
A It makes him forget why he so desperately needed the money from Andrias.
B It gives him perspective on the how malicious and self-centered his past actions were.
C It makes him forget his former hatred for the League.
D A combination of both B and C.

<answer>:

B