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

<passage>:
Linton lay down his steel fork beside the massively solid transparency know how it is. Snead's dead, don't you remember?" Linton remembered. Howell had to know that he would remember. What Linton said, describing the scene over Howell's shoulder. "If that's Snead's brother, I might catch him to pay my respects." "No," Howell said, "I wouldn't do that." "Snead came to Greta's funeral. It's the least I could do." "I wouldn't. Probably no relation to Snead at all. Somebody who looks like him." intimately against Linton's own chair. "Couldn't have been him, though," Linton answered automatically. "My friend's dead." The thick man rocked forward and came down on all six feet. He threw "Snead's dead," Linton said. "What do you say it like that for?" Linton demanded angrily. "The Linton had thought he had known how death was. He had buried his wife, or rather he had watched the two workmen scoop and shove dirt in on the sawdust-fresh pine box that held the coffin. He had known what he sincerely felt to be a genuine affection for Greta. Even after they had let him out of the asylum as cured, he still secretly believed he had known a genuine affection for her. But it didn't seem he knew about death at all. Linton felt that his silence was asking Howell by this time. "Who by?" Linton asked, thinking: "You mean, somebody has invented a way to bring dead people back to He knew, of course, that Howell did not mean that. Howell meant that some people had a system of making it appear that a person had died in order to gain some illegal advantage. But by saying something so patently ridiculous, Linton hoped to bring the contradicting truth to the surface immediately. "I don't understand," Linton said helplessly. the cops find out about a place, they break in, smash all the equipment "I don't understand," Linton complained. "Why haven't I heard about it?" to be dead someday,' not anything sexual. You know how it is. The trying to trick him. They used to do that to see if he was really well. But the temptation was too strong. Linton's fingers imprinted the linen. "Damn you, Howell, you tell me!" Howell climbed to his feet hurriedly. "I take you out to dinner to console you over the loss of your wife a half a year ago, and to make yell at me and curse me. You kooks are all alike!" Howell threw money on the table with the same kind of disinterest as the thick-set man and stalked out. attempted to bribe an officer. That's disturbing, Mr. Linton, very disturbing." "I was only trying to find out something," Linton maintained. "They "I don't know. Who the hell ever wasted Einstein's time asking him a thing like that?" Linton stared suspiciously. "Do you know where I can find a resurrect the dead?" can you resurrect the "No, my wife has been dead a long time. Months." Linton grasped the situation immediately. "You mean you want money. You the corpse. The female corpse, eh?" to obtain. The doctor had taken the body and Linton's fortune and fed them both into the maw of his calculators, and by means of the secret, smuggled formulae, Greta would be cybernetically reborn. Linton shook his head. It seemed impossible. But Greta opened the olive-drab slab of metal of the door to the doctor's inner-inner sanctum and walked out into the medicinal cold fluorescent lighting. It wasn't fair at all, Linton thought. He should have had some time to prepare himself. Greta lifted her arms, stretching the white smock over the lines of her body. "Darling!" she said. "Greta!" he said, feeling a slight revulsion but repressing it. No doubt he would be able to adjust to her once having been dead the same way he had learned to accept the, to him, distasteful duty of kissing her ears the way she enjoyed. Greta swirled across the room and folded her arms across his shoulders. She kissed his cheek. "It's so wonderful to be back. This calls for a celebration. We must see Nancy, Oscar, Johnny, all our old friends." it hadn't changed even in the grave. He remembered the snaky tendrils of it growing out of the water-logged casket. "I must see all our old friends," Greta persisted. "Helen and Johnny...." "My darling," he said gently, "about Johnny—" Her fine black brows made Gothic arches. "Yes? What about Johnny?" "It was a terrible accident right after—that is, about five months ago. He was killed." "Killed?" Greta repeated blankly. "Johnny Gorman was killed?" "Traffic accident. Killed instantly." "But Johnny was your friend, your best friend. Why didn't you have him resurrected the same way you did me?" have to pay premium prices for strawberries in February. I no longer have the money to pay for a resurrection of Johnny." Greta turned her back to him. "It's just as well. You shouldn't bring back Johnny to this dream of life, give him a ghost of mind and the photograph of a soul. It's monstrous. No one should do that. No one. "No," Linton said. "I'm sold out. I've borrowed on my insurance to the hilt. It won't pay any more until I'm buried, and then, of course, you can resurrect me." "Of course," Greta said. She sighed. "Poor Johnny. He was such a good friend of yours. You must miss him. I'm so sorry for you." "I have you," he said with great simplicity. to quench death and smother decay. It's Her eyes flashed around the doctor's office and settled somewhere, on something. Linton followed the direction of Greta's gaze and found only an ashtray stand, looking vaguely like a fanatic's idol to a heathen religion on a pedestal. Greta pounced on the stand, hefted it at the base and ran toward him with it over her head. Linton leaped aside and Greta hit the edge of the desk instead of him. Brain damage, he concluded nervously. Cell deterioration. Greta raised it again and he caught her wrists high over her head. She writhed against him provocatively. "Frank, I'm sorry, dear, but I have to have that insurance money. It's hell!" Linton understood immediately. He felt foolish, humiliated. All that Linton twisted the stand away from his wife and watched her face in some appalled form of satisfaction as it registered horror and acceptance of the crumpled metal disk falling toward it. He split her head open and watched her float to the floor. Linton was surprised at the fine wire mesh just below the skin and in resurrection. They couldn't chemically revive the old corpse like pouring water on a wilted geranium. Or— if the bodies were used? Didn't the resurrectionists just destroy the old corpses and make androids, synthetic creatures, to take their place? But it didn't matter. Not a bit. She had thought she was his wife, sharing her viewpoint down to the finest detail, and he had thought she was his wife. It was what you thought was real that made it so, not the other way around. "I've killed my wife!" Linton called, rising from his knees, stretching his hands out to something. The pain stung him to sleep—a pain in his neck like a needle that left Linton. But they'll cure you. You'll be cured of ever thinking your wife was brought back to life and that you killed her all over again."

<question>:
Why does Linton murder Greta after just resurrecting her?

<options>:
A Greta wants him to relieve her of her suffering
B He desires the rest of her insurance money
C He realized he resurrected the wrong person
D Greta attempted to kill him

<answer>:

D