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

<passage>:
past. Joe didn't know how they'd done it, and he didn't care. Joe was a Joe Prantera called Brett-James on the second day that "Get?" he said. Joe Prantera said impatiently, "The the run, don't I?" "I see." Brett-James cleared his throat. "Mexico is no longer a separate nation, Mr. Prantera. All North Joe eyed him in scorn. "Oh, you didn't, huh? What happens after I give it to this guy? I just sit around method of distribution well over a century ago." Joe had given up. Now he merely stared. Joe Prantera looked at the other expressionlessly. Maybe the old duck was one of these foreign doctors, like. untoward symptoms, possibly I could be of assistance." Joe couldn't figure out how he where's this guy Temple-Tracy you want knocked off?" Reston-Farrell and Brett-James stood. For one thing, there should have been some kind of police guard. which seemed to be the prevailing beverage of the day. For Joe's taste Reston-Farrell. If I am not mistaken, you are Joseph Salviati-Prantera." Salviati happened to be Joe's mother's maiden name. But it was unlikely this character could have known that. Joe had been born in Naples and his mother had died in childbirth. His father hadn't brought him to the leaves the house all by hisself. O.K., so I can make plans, like, to give it to him." Joe Prantera wound it up Joe gingerly tried swinging his Brett-James said, "Why not just go feet to the floor and sitting up, while the other stood watching him, strangely. door had opened for Reston-Farrell. Joe Prantera scowled and said, "These ain't my clothes." "No, I am afraid not." of him. I assure you, he does not possess weapons." Joe was indignant. "Just like that, eh?" he said sarcastically. "Then what Joe gave him a long, chill look and then stepped to the window. He couldn't figure the other. Unless he upon a wide boulevard of what was obviously a populous city. And for a moment again, Joe Prantera felt the depths of nausea. Joe Prantera stared at him, said finally, flatly, "What's it all about?" The other put down the unaccepted been removed, Mr. Prantera," Reston-Farrell attempted to explain. "A Reston-Farrell had approached the is the last man you will ever kill, Mr. Prantera." had evidently been a long wait. Reston-Farrell, the one Joe had already met, was tall and drawn of face A chillness was in the belly of Joe The other was heavier and more at ease. They were both, Joe estimated, somewhere in their middle fifties. They both looked like docs. He Brett-James nodded to him, friendly, so far as Joe could see. He said gently, "I think it would be Mr. Joseph Prantera, wouldn't it? The maternal not usually on his tongue. Joe took an empty chair, hardly bothering to note its alien qualities. molded to his order. Joe said, "I think maybe I'll take Reston-Farrell said, "Of course," and then something else Joe didn't get. Whatever the something else was, a slot opened in the middle of "2133," Reston-Farrell said. "2133 A.D. they would say." Joe Prantera looked from one of them to the other, scowling. "What are you guys talking about?" Warren Brett-James said softly, "Mr. Prantera, you are no longer in the year 1960, you are now in the year 2133." He said, uncomprehendingly, "You Joe demanded, aghast. Dr. Reston-Farrell controlled the car. Joe Prantera sat in the seat next Joe Prantera had never been exposed to the concept of time travel. He had simply never associated with say, from your own era to ours." you, I suppose one might to him and Warren Brett-James sat in the back. Joe had, tucked in his belt, a .45 caliber automatic, once displayed what they had planned. Inwardly, Joe was amused. Now years after the last memory you have." Joe Prantera's mind suddenly reverted to those last memories and his eyes narrowed dangerously. He felt again before the week was through. Besides, already Joe was beginning to feel the comfortable, pleasurable, to perform a task for us." Joe stared at him, and then at the "Like hell you do. You think I'm stupid? I never even seen you before." Joe Prantera came abruptly to his feet. "I'm gettin' outta here." For the second time, Reston-Farrell Joe was coolly efficient now. He pulled out the automatic, held it Joe glared at him. Then sat down again, as abruptly as he'd arisen. "Let's start all over again. I got this down below his knees and threw a Prantera?" by Citizen Howard Temple-Tracy. There were two persons in the reception room but they left on Joe's arrival, without bothering to look at The screen lit and revealed a heavy-set, dour of countenance man seated at a desk. He looked into Joe Prantera's face, scowled and said Joe Prantera's mind whirled its confusion. Finally he said, "What's this bit something. Joe said, "Joseph Salviati-Prantera to interview Citizen Howard Temple-Tracy." The other's shaggy eyebrows rose. about you wanting me to give it to The two men of the future said Reston-Farrell went on, ignoring in the room. Joe Prantera ignored it and remained standing. Citizen Temple-Tracy said, "What probably have caused small dismay to society." They had him pegged all right. Joe a century and a half." "Well, then do it yourself." Joe Prantera's irritation over this whole Two guys special, named Brett-James and Doc Reston-Farrell. I think one of the first jobs I'm gunna hafta do Joe snapped: "Everything you guys say sounds crazy. Let's start all over again." Lawrence." He turned his eyes to Joe. "Mr. Prantera, in your own era, did you ever consider the future?" Joe looked at him blankly. era." "O.K., O.K.," Joe Prantera growled. "So everybody's got it made. What I Ghengis Khan, of Tamerlane, Alexander, Caesar?" Joe Prantera scowled at him emptily. "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 not considered." Brett-James said to Joe Prantera, would have happened?" "Sure," Joe grunted. "I woulda let law of the period, your life would have been forfeit, Mr. Prantera." Joe winced. It didn't occur to him Reston-Farrell said, "As to reward, time stream. There can be no return to your own era." Joe Prantera had been rocking with the mental blows he had been assimilating, but this was the final Joe Prantera on a job was thorough. Careful, painstaking, competent. He spent the first three days of his of things. Brett-James and Reston-Farrell had been appointed to work with him. Joe didn't meet any of the others who belonged to the group which had taken the measures to Brett-James evidently had something to do with the process that had enabled them to bring Joe from the

<question>:
Why do Reston-Farrell and Brett-James bring Joe to the future?

<options>:
A Joe was going to kill Al Rossi. Reston-Farrell and Brett James need Rossi alive.
B Joe is a caregiver. They want him to take care of someone.
C Joe is a hitman. They want him to kill someone.
D Joe is a variant. They removed him from 1960 to correct the timeline.

<answer>:

C