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

<passage>:
A Konv cylinder was the key to space—but there was one power it could not match! They lived in a small house beside the little Wolf river in Wisconsin. Once it had been a summer cottage owned by a rich man from Chicago. The rich man died. His heirs sold it. Now it was well insulated and Mrs. Jamieson and her son were very comfortable, even in the coldest winter. During the summer they rented a few row boats to vacationing fishermen, and she had built a few overnight cabins beside the road. They were able to make ends meet. Her neighbors knew nothing of the money she had brought with her to Wisconsin. They didn't even know that she was not a native. She never spoke of it, except at first, when Earl was a boy of seven and they had just come there to live. Then she only said that she came from the East. She knew the names of eastern Wisconsin towns, and small facts Her husband had been one of the small group who developed this tiny instrument. Not the inventor— his while her husband had been one of twenty-eight persons. She decided then that her efforts would be too ineffective. The odds were wrong. She would wait until her son, Earl, was grown. Together they would seek revenge. He did not have the cylinder—not yet. But he would. The Konvs took care of their own. Her husband had been one of the first, and they would not forget. One day the boy would disappear for a few hours. When he returned the small patch of gauze would be behind his ear. She would shield him until the Later they would go to Alpha Centaurus, where a life free from Agents could be lived. It happened to Earl one hot summer day when he was fourteen. Mrs. Jamieson was working in her kitchen Earl supposedly was swimming with nude. At sight of his mother his face paled and he began to shake "Mom!" he cried. "Mom!" He went to the window and looked out toward the river, where his friends were still swimming in the river, with great noise and delight. "Get used to what?" "To people seeing you nude." like his before. He asked who was Earl Jamieson, and I said I was. Then that looked like the first one only he was bigger. We went to a house, not far away and went inside. And that's all I can remember until I Earl ran his hand through his hair, shaking his head. "I don't remember Earl faced the window, looking out, then turned quickly back. "What is Mrs. Jamieson held out her hand. "Come here, son. It's time I told you about us." So he sat across the kitchen table from her, and she told the whole history, beginning with Stinson sitting in the laboratory in New reason for noticing them at all was lost. Normal men no longer thought when he arrived. But he did arrive, and it was what he had sought. He returned for the others. They gathered one night in a dirty, broken-down farmhouse in Missouri—and disappeared in a body, leaving without him. Now do you know why I killed the Agent in the third cabin? I had to. Your father was a great man, and I loved him." "I don't blame you, mother," Earl said simply. "But we are freaks. That is, the first shock was over. Mrs. Jamieson watched Earl leave the He wanted to be alone. He needed to think, to feel the newness of the the initial shock wore off he might experiment with his new power. He within walking distance of his clothes, because he still lacked the For the remainder of that summer they worked together. They practiced at night mostly, taking longer and longer jumps, until Earl's confidence allowed him to reach any part of the Earth he chose. She Earl changed. Even before the summer was over, he matured. The childish antics of his friends began to bore him. "Be careful, Earl," his mother would say. "Remember who you are. Play with them sometimes, even if you don't like it. You have a long way to go before you will be ready." During the long winter evenings, after they had watched their favorite video programs, they would sit by the fireplace. "Tell me about the great ones," he would say, and she would repeat all the things she discussing them. She would tell about Benjamin's wife, Lisa, and try to describe the horror in Lisa's young mind when the news went out that be after Earl. They were so clever, so persistent. She wanted him to be would learn it faster if she avoided the word. The winter passed, and the next summer, and two more summers. Earl was ready for college. They had successfully kept their secret. They had been vigilant in every detail. Earl referred to the "damn young doctor will be needed. Study hard, Earl. Learn all you can. Even bungalow within walking distance of the University's medical school. Mrs. Jamieson furnished it carefully but, oddly, rather lavishly. This was her husband's money she was spending now. It needed to last only a few years. Then they would leave Earth forever. A room was built on the east side of the bungalow, with its own private entrance. This was Earl's room. Ostensibly the private entrance was for Excitement brought color to her cheeks when she thought of Earl facing bloodthirsty society, living off the fat of the land. She painted the room herself, in soft, pastel colors. When it was finished she showed Earl regally into the room, making a big joke of it. "Here you can study and relax, and have those bull sessions students are always having," she said. comfortable." He shook his head again. "Why can't I be in the house with you? There are two bedrooms." She said quickly, "You can if you wish. I just thought you'd like being alone, at your age. Most boys do." "I'm not like most boys, mother. The Konvs saw to that. Sometimes I'm sorry. Back in high school I used to wish I was like the others. Do you remember Lorane Peters?" His mother nodded. "Well, when we were seniors She turned her back and slammed the door. Earl stood very still for a long time in the room that was to have been happy for him. She was crying just beyond the wall. Earl did not use the room that first year. He slept in the second bedroom. He did not mention his frustrated desires to be normal, not after the first attempt, but he persisted in his efforts to be so. Use of the cylinder was out of the question for them now, anyway. In the spring Mrs. Jamieson caught a virus cold which resulted in a long convalescence. Earl moved into the new bedroom. At first she thought he moved in an effort to please her because of the illness, but she soon grew aware of her mistake. One day he disappeared. of crimes committed by the man and his wife, and determined to prevent Earl from making the mistake of taking on more than he could handle. When she arrived at her own home, Earl was in his room. "Where have you been?" she asked petulantly. "Oh, here and there." than she would permit Earl to see. fear that one or more of the men on Earl's list might have acquired a She knew. She had found a gun in Earl's desk. She took the paper into Earl's room. "Did you do this?" "Well, what else can he do?" Earl asked. "After all, he is an Agent. Earl stunned immobile—not by the blow, but from the knowledge that she been so stupid as to tell them, they'd know. They knew my pattern from the time your father was alive. They got yours when we were together years ago, teasing them. They linked your pattern with mine. They know Earl sat down suddenly, "It's just as well. I thought maybe some day I talking alone, the next he was here. Earl saw him first. He was a He was entirely nude ... but it seemed natural and right. "Yes," she said. "We are ready." "I remember when you were born," he said, and smiled in reminiscence. "Your father was afraid you would be twins." Earl said, "Why was my father killed?" "By mistake. Back in those days, like now, there were good Konvs and them, then ran to Earl's desk, fumbling for the gun.

<question>:
Why did Earl need to get used to being seen nude?

<options>:
A He liked to swim in the river with his friends
B He was taken by the Konv for surgery
C When you travel with the cylinder you arrive nude
D He shared a small house with his mom

<answer>:

C