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

<passage>:
THE ULTROOM ERROR by JERRY SOHL Smith admitted he had made an error involving a few murders—and a few thousand years. He was entitled to a sense of humor, though, even in the Ultroom! HB73782. Ultroom error. Tendal 13. Arvid 6. Kanad transfer "What do you do?" "Office work, mostly. I'm a junior executive in an insurance company." inside and around the kid as much as possible. Keep your doors and windows locked. I'll see that the prowl car keeps an eye on the house. Call us if anything seems unusual or out of the way." "Yes, I'd almost forgotten about it." "Why don't you be a good fellow and write a check for it? It's been over a year, you know." forward on his face. The figure of a woman ran from the house, retrieved the now squalling "I wonder why they want our baby? He's just like any other baby. We "Where's Tiger?" can't, that's all. I'd be able to think of nothing but that day." "Still thinking about it? I think we'd have heard from them again if they were coming back. They probably got somebody else's baby by this for safety's sake I guess you'd better keep that gun handy." The morning turned into a brilliant, sunshiny day. Puffs of clouds sign of trouble. With a fearful but determined heart Nancy moved the play pen and set gurgled with delight at the change in environment. This peaceful scene was disturbed by a speeding car in which two men were riding. The car roared up the street, swerved toward the parkway, tires screaming, bounced over the curb and sidewalk, straight toward to see the approaching vehicle. His mother stood up, set her palms against her cheeks and shrieked. The car came on, crunched over the play pen, killing the child. The mother was hit and instantly killed, force of the blow snapping her spine and tossing her against the house. The car plunged on into a tree, hitting it a terrible blow, crumbling the car's forward end so it looked like an accordion. The men were thrown from the machine. "We'll never be able to prosecute in this case," the states attorney said. "At least not on a drunken driving basis." trace of either. No doctor ever made a report of a gunshot wound that night. No hospital had a case either—at least not within several looks deliberate, but where's the motive?" "What does the man have to say?" his guilt—in fact, he seems amused by most everything. Sometimes all an alienist." "One jump ahead of you. Dr. Stone thinks he's normal, but won't put to take delight in answering questions—sort of anticipates them and has the answer ready before you're half through asking." "Laughton? We're afraid to let him see him. All broken up. No telling what kind of a rumpus he'd start—especially if Smith started his funny business." "Guess you're right. Well, Mr. Smith won't think it's so funny when we hang criminal negligence or manslaughter on him. By the way, you've checked possible family connections?" "Your damned foolishness has gone far enough. I'm sick and tired of it," he declared. "If you carry on any more we'll never get back to the Ultroom!" "I'm sorry, Tendal," the man on the cot said. "I didn't think—" "You're absolutely right. You didn't think. Crashing that car into that tree and killing that woman—that was the last straw. You don't even deserve to get back to our era. You ought to be made to rot really sorry about that," Arvid 6 said. You know the instructions. Just because you work in the Ultroom don't head. "You could have killed yourself as well and we'd never get the job done. As it is, you almost totally obliterated me." Tendal 13 paced the length of the cell and back again, gesturing as he talked. "It was only with the greatest effort I pulled myself back together again. I doubt that you could have done it. And then all the while brand of humor I have grown to despise." "How well I know! How sorry I am that I ever did! It was only because I was sorry for you, because someone older and more experienced than He snorted. "I still can't believe I was ever that stupid. I only prove it when I pinch myself and here I am. "Oh, you've been a joy to be with! First it was that hunt in ancient mistakes. You're just not adventurous, that's all." "Shut up! For once you're going to listen to me. Our instructions specifically stated we were to have as little as possible to do with these people. But at every turn you've got us more and more enmeshed idea of taking Reggie right out of his play pen. 'Watch me take that child right out from under its mother's nose' were your exact words. And before I could stop you, you did. Only you forgot an important factor in the equation—the dog, Tiger. And you nursed a dogbite most the poor thing by suggesting suffocation to it that night. "And speaking of that night, you remember we agreed I was to do the talking. But no, you pulled a switch and captured Martin Laughton's said. 'I'll take the wheel.' And the next thing I know I'm floating in space halfway to nowhere with two broken legs, a spinal injury, concussion and some of the finest bruises you ever saw." These twentieth century machines aren't what they ought to be," Arvid 6 said. "You never run out of excuses, do you, Arvid? Remember what you said in the Ultroom when you pushed the lever clear over and transferred slipped.' It was so simple everyone believed you. You were given no real punishment. In a way it was a reward—at least to you—getting to know what I think? I think you deliberately pushed the lever over as far as it would go just to see what would happen . That's how simple I think it was." "What crazy things have you been doing since I've been gone?" Tendal Arvid 6 sighed. "After what you just said I guess it wouldn't amuse you, although it has me. They got to me right after the accident before I had a chance to collect my wits, dematerialize or anything—you said we shouldn't dematerialize in front of anybody." "That's right." "Well, I didn't know what to do. I could see they thought I was drunk, alcohol in my blood, although I implanted a memory in them that I reeked of it." He laughed. "I fancy they're thoroughly confused." "Who do you tell them you are?" manufactured a pasteboard called a social security card and a driver's license—" "Never mind. It's easy to see you've been your own inimitable self. Believe me, if I ever get back to the Ultroom I hope I never see you again. And I hope I'll never leave there again though I'm rejuvenated through a million years." "Do you think Kanad will be angry about all this?" "How would you like to have to go through all those birth processes, to have your life germ knocked from one era to the next?" "Frankly, I didn't think he'd go back so far." who came to the Ultroom to be transplanted to a younger body—and then thousand or more or until their bones are like paper." "I just wonder how angry Kanad will be," Arvid muttered. HB92167. Ultroom Error. Tendal 13. Arvid 6. Kanad transfer "I know, I know. You want me to let you handle everything." "Exactly. Is that too much to ask after all you've done?" "I guess I have made mistakes. From now on you be the boss. I'll do whatever you say." "Arvid!" a violent argument.

<question>:
What is the purpose of the Ultroom?

<options>:
A It can alter someone's DNA to give them more desirable attributes
B It can change someone's original birth date
C It can relocate someone to a different body
D It can disrupt catastrophic events before they occur

<answer>:

C