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 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. was," Nancy told her husband for the tenth time. "I don't even have a just—just plain nuts, Nancy!" going crazy. I can't say I dreamt it because there was Reggie with his "We haven't lost Reggie, Nancy, remember that. Now why don't you try Nancy shook her head in her arms. "They'd—never—believe me either," They found Reggie peacefully asleep in his crib in his room upstairs. think he was her brother. She doesn't even have a brother. Then he Nancy had taken a sedative and was asleep by the time Martin finished infant and ran back into the house. Once inside, Nancy slammed the be! I tell you I shot these men who posed as doctors. One of them was the same man who tried to take the baby this the walk and the bushes. There's supposed to be two of them. Shot with Reggie." "I shot him in the legs. The other—the other turned and I shot him in The policemen went out. If we keep Reggie in the house much longer he'll turn out to be a they were coming back. They probably got somebody else's baby by this trees. It would be a crime to keep Reggie inside on a day like this, keep an eye on Nancy and Reggie and to call the police at the first With a fearful but determined heart Nancy moved the play pen and set Reggie in the pen. Her heart pounded all the while and she watched the street for any strangers, ready to flee inside if need be. Reggie just the child and mother. Reggie, attracted by the sudden noise, looked up 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 six men who will swear the man was drunk. He staggered, reeled and gave the usual drunk talk. He reeked of whiskey." "That's odd. The man who accosted Mrs. Laughton in the afternoon was bitten by their dog. Later that night she said she shot the same man in the chest. Since the scars are healed it obviously couldn't be the agree with him. Never did figure what killed him, actually." . You'll remember, there were two. No, we never found a "Getting back to the man who ran over the child and killed Mrs. looks deliberate, but where's the motive?" 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 that tree and killing that woman—that was the last straw. You don't "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 head. "You could have killed yourself as well and we'd never get the 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 wearily and sank his head in his hands. "It was you who conceived the idea of taking Reggie right out of his play pen. 'Watch me take that you said. And then what happened? I get shot in the legs and you get a 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 "Who do you tell them you are?" be around 2250. Things will be more difficult than ever there, probably." "Do you think Kanad will be angry about all this?" who came to the Ultroom to be transplanted to a younger body—and then 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 murdered Nancy and Reggie?

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

<answer>:

D