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 out of 1609 complete, intact, but too near limit of 1,000 days. Next Kanad transfer ready. 1951. Reginald, son of Mr. knees hit the side of the play pen and young Laughton let out a scream—half from hurt and half from sudden lack of confidence in his child. Around the corner and after the man came a snarling mongrel dog, eyes bright, teeth glinting in the sunlight. The man did not turn as the heels. "I tell you, the man said he was my brother and he made me think he was," Nancy told her husband for the tenth time. "I don't even have a brother." just—just plain nuts, Nancy!" "Don't you think I know it?" Nancy said tearfully. "I feel like I'm him. "Are you a rich man, Mr. Laughton?" he asked. "What do you do?" "Fine." "And your wife?" Reggie." Nancy, who was rocking the boy, narrowed her eyes. that." six men who will swear the man was drunk. He staggered, reeled and gave the usual drunk talk. He reeked of whiskey." The prosecutor handed the report over the desk. "Here's the analysis. dogbite, the Laughton dog died that night. His menu evidently didn't agree with him. Never did figure what killed him, actually." "Getting back to the man who ran over the child and killed Mrs. It was the chief's turn to shake his head. "Your guess is as good as "What does the man have to say?" name is John Smith and he's got cards to prove it, too—for example, a social security card. It looks authentic, yet there's no such number down any I.Q. Actually, he can't figure him out himself. Smith seems has the answer ready before you're half through asking." "Well, if Dr. Stone says he's normal, that's enough for me." The "Guess you're right. Well, Mr. Smith won't think it's so funny when we "Nobody ever saw John Smith before. Even at the address on his The man who had laughingly told police his name was John Smith lay on his chest. This gave him the appearance of being alert despite reclining. Even as he lay, his mouth held a hint of a smile. Arvid 6—for John Smith was Arvid 6—had lain in that position for more than four hours, when suddenly he snapped his eyes open and appeared to be listening. For a moment a look of concern crossed his face and he swung his legs to the floor and sat there expectantly. Arvid 6 knew Tendal 13 had materialized and was somewhere in the building. Eventually there were some sounds from beyond the steel cell and doorway. There was a clang when the outer doorway was opened and Arvid 6 rose from his cot. "Your lawyer's here to see you," the jailer said, indicating the man with the brief case. "Ring the buzzer when you're through." The jailer it," he declared. "If you carry on any more we'll never get back to the Ultroom!" here." "I'm really sorry about that," Arvid 6 said. You know the instructions. Just because you work in the Ultroom don't get to thinking human life doesn't have any value. We wouldn't be here you've been sitting here, probably enjoying yourself with your special brand of humor I have grown to despise." "You didn't have to come along at all, you know," Arvid 6 said. "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 you was needed. I volunteered. Imagine that! I volunteered! Tendal 13 reaches the height of stupidity and volunteers to help Arvid 6 go back 6,000 years to bring Kanad back, to correct a mistake Arvid 6 made!" He snorted. "I still can't believe I was ever that stupid. I only prove it when I pinch myself and here I am. when her husband mistook me for you and you let him take me apart piece by piece—" "All right, all right," Arvid 6 said. "I'll admit I've made some mistakes. You're just not adventurous, that's all." "Shut up! For once you're going to listen to me. Our instructions these people. But at every turn you've got us more and more enmeshed with them. If that's adventure, you can have it." Tendal 13 sat down wearily and sank his head in his hands. "It was you who conceived the 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 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 Kanad back 6,000 years? 'My hand slipped.' As simple as that. 'My hand go back and rescue the life germ of Kanad out of each era he'd be born in." Tendal 13 turned and looked steadily and directly at Arvid 6. "Do you know what I think? I think you deliberately pushed the lever over as far as it would go . That's how simple I think it was." Arvid 6 flushed, turned away and looked at the floor. "What crazy things have you been doing since I've been gone?" Tendal 13 asked. 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 "That's right." "And you amused yourself with him." "I suppose you'd think so." "Who do you tell them you are?" "John Smith. A rather prevalent name here, I understand. I be around 2250. Things will be more difficult than ever there, probably." "Do you think Kanad will be angry about all this?" blame, wanting rejuvenating at only 300 years. Some have waited a 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 out of 1951 complete. Next Kanad transfer ready. 2267. Phullam 19, son of Orla 39 and Rhoda R, 22H Level M, Hemisphere B, Quadrant 3, Sector I. Arrive his 329th Day. TB92167 Arvid 6 rose from the cot and the two men faced each other. "Before we leave, Arvid," Tendal 13 started to say. "I know, I know. You want me to let you handle everything." "Exactly. Is that too much to ask after all you've done?" barred door the jailer fumbled with the keys and clumsily tried several with no luck. Arvid 6, an amused set to his mouth and devilment in his eyes, watched the jailer's expression as he walked through the bars of the door. He laughed as he saw the jailer's eyes bulge. "Arvid!" Tendal 13 walked briskly through the door, snatched Arvid 6 by the shoulders and shook him. The jailer watched stupified as the two men vanished in the middle of

<question>:
Who is John Smith?

<options>:
A Mr. Laughton
B Tendal 13
C Kanad
D Arvid 6

<answer>:

D