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

<passage>:
A gun is an interesting weapon it can be hired, of course, and naturally doesn't care who hires it. Something much the same can be said of the gunman, too.... called softly, "Al." The pleasurable, mountains, and to a lesser extent, deserts, are fairly permanent even against man's corroding efforts. Brett-James on the second day that Temple-Tracy guy, I gotta go on he hadn't completely pulled the trigger. That at least meant that whatever the rap was it wouldn't be too tough. With luck, the syndicate would "No banks! You gotta have banks!" "And no money to put in them. something that was awfully wrong. The other spoke precisely and slowly, the way a highly educated man speaks a language which he reads Brett-James said reasonably, "We where's this guy Temple-Tracy you and adjustment is often not fully Reston-Farrell and Brett-James Reston-Farrell. If I am not mistaken, Brett-James said, "Why not just go dispose of him?" "Jest walk in, eh? You think I'm stupid? How do I know how many witnesses hangin' around? How do I know if the guy's carryin' heat?" brought back memories of that extreme condition he'd suffered during ... during what? He hadn't the of a faint nausea, which Temple-Tracy lives alone. He customarily "These ain't my clothes." would be quite simple for you to enter his establishment and dispose of him. I assure you, he does not possess weapons." Reston-Farrell said, "I am afraid, "You think I'd be seen dead wearing this stuff? What is this, some religious "No, I am afraid not." Joe was indignant. "Just like that, He looked out, however, not on the lawns and walks of a sanitarium but "This is difficult for you to understand, I imagine," Reston-Farrell told him, "but, you see, we no longer punish people in this era." That took a long, unbelieving moment to sink in. "You mean, like, no matter what they do? That's crazy. Everybody'd be running around giving it to everybody else." "The motivation for crime has been removed, Mr. Prantera," Reston-Farrell attempted to explain. "A person who commits a violence against another is obviously in need of medical care. And, consequently, receives it." vengeance, of the measures that Reston-Farrell had approached the might be taken by Big Louis on his failure, were now far away. Reston-Farrell, the one Joe had already and with a chainsmoker's nervousness. The other was heavier and more somewhere in their middle fifties. They both looked like docs. He wondered, all over again, if this was some kind of pressure cooker. Reston-Farrell said, "May I present brief and painless, believe me." Joe said coldly, "And what happens won't rat on you?" to you guys? How do you know I the other day, Mr. Prantera. Citizen Howard Temple-Tracy is a dangerous, atavistic, evil genius. We are afraid for our institutions if his plans are allowed to mature." Reston-Farrell said, "Of course," Homo sapiens is a unique animal. Physically he matures at approximately the age of thirteen. However, mental maturity as to be all but invisible, was elevated. It contained possibly three Indeed, it is sometimes never achieved. Before such maturity is reached, our youth are susceptible to romantic appeal. Nationalism, chauvinism, racism, the supposed glory of the military, all seem romantic to the immature. They rebel at the orderliness of present society. They seek entertainment in excitement. Citizen Temple-Tracy is aware of this and finds his recruits among the young." "O.K., so this guy is dangerous. "Prepare yourself for somewhat of a shock, Mr. Prantera. You are no you do not even speak the language." "What'd'ya mean? I don't understand summa the big words you eggheads students of such subjects any longer speak such tongues as Amer-English, French, Russian or the many others that once confused the race with their limitations as a means of communication." Reston-Farrell said, "I am afraid we "You mean there's no place in the He had simply never associated with anyone who had ever even remotely considered such an idea. Now he said, The others were nervous, obviously repelled by the very conception of what they had planned. they'd talk themselves into it "That is correct." "Like hell you do. You think I'm stupid? I never even seen you before." For the second time, Reston-Farrell I know, Jessie, Tony, the Kid, Big Louis, everybody, they're dead. Even "Yes," Brett-James said, his voice soft. "They are all dead, Mr. Prantera. Their children are all dead, and their grandchildren." The two men of the future said "That is why we brought you here, Mr. Prantera. You were ... you are, a professional assassin." Reston-Farrell went on, ignoring I might say, whose demise would probably have caused small dismay to society." Temple-Tracy stared at the weapon. there are no professional assassins in this age, nor have there been for over a century and a half." already he was beginning to long for the things he knew—for Jessie and Tony and the others, for his favorite knowledgeable in the field of violence. Tell me more about yourself. You surprise me considerably." unseeing. Then, his back turned, he said, "We have tried, but it is simply not in us, Mr. Prantera." Two guys special, named Brett-James "No, if by that you mean afraid. It is simply not within us to take the life of a fellow creature—not to speak of a fellow man." Brett-James said, "Let me do it, Just as we are today and just as nations were a century or a millennium ago." depressions and dictators and like that." "Yes, like that," Brett-James most surely would have destroyed itself. Wars? Our pedagogues are hard put to convince their students that such ever existed. More than a century and a half ago our society eliminated the reasons for international conflict. For that matter," he added musingly, "we eliminated most international boundaries. Depressions? awoke to the fact that he had achieved to the point where it was possible to produce an abundance for all with a in almost every field, certainly in every science. Dictators? Your ancestors found, Mr. Prantera, that it is difficult for a man to be free so long as others are still enslaved. Today the democratic ethic has reached a pinnacle never dreamed of in your own thumped his right index finger twice on the table. "The bacterium of hate—a new strain—has found the human race unprotected from its disease. We had thought our vaccines immunized us." "Or, more likely, of Napoleon, Hitler, Stalin?" "Sure I heard of Hitler and Stalin," Joe growled. "I ain't stupid." The other nodded. "Such men are unique. They have a drive ... a drive to power which exceeds by far the ambitions of the average man. They are genii in their way, Mr. Prantera, genii of evil. Such a genius of evil has appeared on the current scene." "Now we're getting somewheres," Brett-James said to Joe Prantera, to doubt their word. into present day society. Competent psychiatric therapy will soon remove your present—" of things. Brett-James and Reston-Farrell others who belonged to the group which had taken the measures to bring him from the past. He didn't Reston-Farrell. Joe had been right, Brett-James evidently had something

<question>:
Why are Reston-Farrell and Brett-James not willing to assassinate Temple-Tracy themselves?

<options>:
A They would feel such guilt after taking a fellow human's life as to cause them long-lasting anguish
B They are fearful of Temple-Tracy's followers using him as a martyr to strengthen their cause
C They are afraid of what might happen if they are forced to receive psychiatric treatment
D They do not possess hatred in their genetic sequence and are incapable of committing vile acts

<answer>:

D