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

<passage>:
Not all the world’s citizens were content. Bergstrom was waiting in his office when Zarwell arrived that evening. “They’re probably just curious to see what he looks like first. They’ll be disappointed.” Zarwell opened his eyes a slit to knew now that it had been a spaceport. His captor’s broad face jeered down at Zarwell. “Have a good sleep?” he asked with mock solicitude. Zarwell did not deign to acknowledge that he heard. Zarwell followed his gaze to where a younger man, with a blond lock of hair on his forehead, stood behind While their attention was away from him Zarwell had unobtrusively yet?” Zarwell told him. The grin faded from the oily face as the man stood up. He leaned over He offered no resistance as they reached him. They were not gentle men. A tall ruffian, copper-brown face damp with perspiration and body oil, grabbed him by the jacket and drove his fist at Zarwell’s head. Zarwell pulled the struggling body down against his chest and held it there until all agitated Bergstrom, asked. John Zarwell shook his head. “Did I talk while I was under?” nonchalance. “The next couple “How does it tie in with what I told you before?” Bergstrom’s neat-boned, fair-skinned face betrayed no emotion other than an introspective stillness Zarwell did not answer. His memory seemed on the point of should do it.” in the palm of his hand. He knew “I don’t see why not.” Zarwell Bergstrom had his bad moment. [p 137 “You’re not going to …” he began now why he always carried it. Zarwell corrected him. “You’d be foolish!” Bergstrom obviously realized how close he was to death. Yet surprisingly, after the first start, he showed little fear. Zarwell had area. “Good.” Bergstrom rose. “The serum is quite harmless, John.” He maintained a professional diversionary Curiosity restrained his trigger finger. thought the man a bit soft, too adjusted to a life of ease and some Bergstrom shook his head. “I know it’s been broken before. But you need me. You’re not through, and rolled gently toward the far wall. Bergstrom continued talking, with practiced urbanity. “When “No.” Bergstrom was angry now. psychiatry was a less exact science,” analyst.” “Is that the best you can do?” Zarwell debated with himself the truth of what the other had said. “Why didn’t you turn me in?” he The floor continued its transmutation, and Zarwell sank deep into killer!” Now that the crisis seemed to be past, Bergstrom spoke more calmly, even allowed himself to above. They faded, were gone. ZARWELL found himself in those comanalyses than you did. I even know who you are!” Zarwell’s eyebrows raised. “Who am I?” he asked, very interested now. Without attention he put his pistol away in a trouser pocket. Bergstrom brushed the question aside with one hand. “Your name makes little difference. You’ve used the human worlds. I’d like to talk more with you on that later.” While Zarwell considered, Bergstrom pressed his advantage. “One more scene might do it,” he said. confidence?” ] Zarwell made his decision quickly. “Go ahead,” he answered. ALL Zarwell’s attention seemed on the cigar he lit as he rode down the escalator, but he surveyed 145 longer the same. No longer his own features. The stranger face smiled approvingly at him. “O DD,” Bergstrom said. He brought his hands up and joined rebellion. But he had played a leading loungers. Behind the escalator he groped place.” He paused. “It means no more to you than the first, I suppose?” “No,” Zarwell answered. He was not a talking man, Bergstrom reflected. It was more than reticence, however. The man had He was a man who could handle himself well in an emergency. Bergstrom shrugged, dismissing his strayed thoughts. “I expected as much. A quite normal first phase down at his appointment pad. “Tomorrow at two, then?” Zarwell grunted acknowledgment Zarwell left the analyst’s office. heat, squat and austere as giant tree trunks, pock-marked and gray-mottled with windows. Zarwell for the shot. But why would “A good man must have done that job on your mind,” Bergstrom homes of the laborers and lower class techmen who live there. Zarwell passed a group of smaller children playing a desultory 146 ] “Trust and money,” Zarwell said drily. “Your memory’s back then?” Zarwell nodded. “I’m glad to hear that,” Bergstrom assured him. “Now that you’re well again I’d like to introduce game of lic-lic for pieces of Johnson. This world …” Zarwell stopped him with an upraised The next morning when Zarwell you see the reason for all this? I’m tired. I’m trying to quit.” “Quit?” Bergstrom did not quite follow him. ] you to a man named Vernon The words tumbled down from “Because you’re no mad-dog trouble.” also. “I’m not a professional do-gooder.” Zarwell’s tone appealed to Bergstrom for understanding. “I have only a normal man’s indignation at injustice. And now I’ve done than he had expected them to be. He walked about the small apartment. The place was familiar, but relax. “You’re still pretty much in A village was being ravaged. Men struggled and died in the streets. Zarwell moved among Johnson can do your own revolting. I’m through!” Bergstrom did not argue as he left. RESTLESSNESS drove Zarwell was nearing its end. Zarwell was riding a shaggy pony outside a high can spare a few minutes,” the stranger said. Zarwell turned and studied the man without answering. He was Zarwell was not the leader of the medium tall, with the body of an killing. invaders, only a lesser figure in the in the streets again, plundering and The job had been well done. Time passed, without visible “You’re Johnson?” he asked. The man nodded. Zarwell tried to feel the anger he break in the panorama. Now Zarwell wanted to feel, but somehow it was fleeing, pursued by the same bearded men who had been liking the man, and wanting at least to be courteous. He inclined his conflict engulfed him. Weary but resigned he accepted it, and did what he had to do …BERGSTROM was regarding BERGSTROM was regarding him with speculative scrutiny. “You’ve had quite a past, apparently,” 141 ] Zarwell smiled with mild embarrassment. “At least in my dreams.” “Dreams?” Bergstrom’s eyes They …” Zarwell found himself not listening past.” wary. He watched Bergstrom closely. After a minute, however, he seemed satisfied, and he let himself Zarwell’s expression became as Johnson’s voice went on. The of what I saw,” he observed. “That’s why you’re here, you know,” Bergstrom answered. “To help you remember.” story was always the same. But why Johnson had finished his speech. Zarwell gazed up at the bright “That’s what makes me so certain,” Bergstrom said confidently. “You don’t remember what we have shown to be true. Conversely The man with the gun raised his until next week end,” Zarwell reminded him. “That’s right.” Bergstrom thought for a moment. “We tomorrow?” “I suppose I could.” “Fine,” Bergstrom said with satisfaction. “I’ll admit I’m considerably more than casually interested in your case by this time.” A WORK truck picked Zarwell Zarwell pulled his sun helmet worker’s mouth. Zarwell gazed idly about at the other laborers. Fully three-quarters

<question>:
Why doesn't Zarwell shoot Bergstrom?

<options>:
A Zarwell may have been a killer in the old life, but not now.
B Zarwell is trying to start a new life. He doesn't want to kill anymore.
C Zarwell is a freedom fighter, not a cold-blooded killer.
D Zarwell likes Bergstrom. They are friends.

<answer>:

C