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

<passage>:
As the years went by, Martin began to lose even his detached interest No one, least of all Martin, could dispute Nobody in the neighborhood was surprised when Martin's mother "Eat, drink and be merry, or whatever you Romans say when you do as you do," the cousin—who was rather woolly in history the descendants were scraping bottom now—advised. had never had one. He'd been a war baby, born of one of the tides of disillusioned by the current crop of Romans. He found that neither purpose nor malice was enough he was still immeasurably bored. soldiers—enemies and allies, both—that had engulfed the country in good while he was living with his old lady. As for his father, Martin "? Maybe he was only eleven, but he'd instead of mopping up the floor with him. He had often fancied that Conrad would prove to be the most stimulating member of the whole generation. But it seemed unlikely that he would ever have a chance for a conversation with the young man. More than one conversation, anyhow. "But I can't understand," he would say, keeping his face straight. "Why do you have to come from the future to protect me against your cousin Martin smiled with all the charm he'd had nothing to do but acquire. "I "Oh, just don't ask any questions," Ninian said petulantly. "When you get older, someone will explain the whole thing to you." The Interregnum roamed the seas restlessly, with her load of passengers from the future, plus one bored and aging contemporary. She One day the truant officer came to ask why Martin hadn't been coming hired a private tutor for him. A tutor—in that neighborhood! Martin thought of her, for she made no secret of regarding them as little better than animals, but she was shy of attracting attention. There she'd do next. Already he had begun to assume the detached role of a spectator. When it became clear that his mother was never going to show up again, From time to time, there were other visitors—Uncles Ives and Bartholomew and Olaf, Aunts Ottillie and Grania and Lalage, and many more—all cousins to one another, he was told, all descendants of his. conspicuous as before. But he didn't tip her off. She was grown up she was supposed to know better than he did. When Martin was sixteen, Raymond took him aside for the talk Ninian had Martin nodded gravely. He was a quiet boy now, his brief past a dim and glasses. His face was pallid, because he spent little time in the sun, and his speech rather overbred, his mentors from the future having carefully eradicated all current vulgarities. snapped. "We just come a couple of centuries or so later, that's all. But remember, our interests are identical. We're virtually the same people ... although it is amazing what a difference two hundred odd years of progress and polish can make in a species, isn't it?" expensive machinery. After all, if we didn't give the natives jobs, how would they manage to live?" "How did they live before? Come to think of it, if you don't work, how "I'm sorry," Martin said. But he wasn't, for by now he had little respect left for any of his descendants. They were all exceedingly handsome and cultivated young people, with superior educations, smooth ways of speaking and considerable self-confidence, but they just weren't very bright. And he had discovered that Raymond was perhaps the most intelligent of the lot. Somewhere in that relatively short span of time, his line or—more frightening—his race had lost something vital. Unaware of the near-contempt in which his young ancestor held him, might never have reached the stars. Which is ridiculous—his feeling guilty, I mean. Perhaps a great-grandfather is responsible for his great-grandchildren, but a great-grandchild can hardly be held accountable for his great-grandfather." "Oh, I do!" Martin said. He had pieced the whole thing together for assistants for a set of the plans. Conrad's idea had been to go back in time and "eliminate!" their common great-grandfather. In that way, there would be no space-drive, and, hence, the Terrestrials would never get to the other planets and oppress the local aborigines. matters. But when it came to the point, Conrad couldn't bear the idea of eliminating our great-grandfather—because our great-grandfather was such a good beamed at Martin. Martin had, of course, no illusions on that score "I see," Martin said. exile," Raymond explained, "even though our life spans are a bit longer than yours. Besides, you're getting too old now to be under petticoat government." He looked inquisitively at Martin. "You're not going to go all weepy and make a scene when she leaves, are you?" her own inadequacy, Martin knew, not of sorrow. He was getting skillful at understanding his descendants, far better than they at understanding dozen years later, they weren't touched. Martin was never sure whether this had been sheer luck or expert planning. Probably luck, because his descendants were exceedingly inept planners. Few people in the world then could afford to live as stylishly as Martin and his guardian. The place not only contained every possible carefully chosen by Raymond and disputed by Martin, for, to the man Martin accepted his new surroundings. His sense of wonder had become During those early years, Martin's tutors were exchanged for the higher-degreed ones that were now needful. The question inevitably arose of what the youth's vocation in that life was going to be. At least twenty of the cousins came back through time to hold one of their vigorous family councils. Martin was still young enough to enjoy such occasions, finding them vastly superior to all other forms of entertainment. "Don't be a fool, Grania!" Raymond snapped. "Well, Martin, have you their times." "Furthermore," Ottillie added, "one more artist couldn't make much difference in history. There were so many of them all through the ages." Cousin Ives—now that Martin was older, he was told to call the descendants cousin —next assumed guardianship. Ives took his "Takes time," Ives tried to reassure him. "One day they'll be buying your pictures, Martin. Wait and see." Ives was the only one of the descendants who seemed to think of Martin man failed, he got worried and decided that what Martin needed was a which Martin christened the nearly intact semi-civilized world and the uncivilized world, much the form of shuffleboard and gambling on future sporting events. That last usually ended in a brawl, because one cousin was sure to accuse another of Martin didn't care much for their company and associated with them only when not to have done so would have been palpably rude. And, though they were gregarious young people for the most part, they didn't court his society. He suspected that he made them feel uncomfortable. interbred aristocracy, to which Martin's descendants belonged by virtue of their distinguished ancestry. He always felt that if any of the cousins could have come to realize the basic flaw in the elaborate plan they had concocted, it would have continent, a hundred years or more before the date of his birth. A great many of the cousins turned up at the simple ceremony. All were cousin from the future they were afraid he might prove rather stuffy about the entire undertaking. a while, Martin couldn't tell one from another. Cousin after cousin apart as the different oceans. All the cousins were young, for, though they came at different times in his life, they had all started out from the same time in theirs. Only the young ones had been included in the venture they did not trust their elders.

<question>:
At the age of eleven, Martin recognizes

<options>:
A Conrad is the enemy, and the only way to keep the future generation safe is to fight him to the death if it comes to it.
B the descendants are on to something with the way they live in the future.
C the descendants are really the instrument of Conrad, and they are there to do his bidding.
D the descendants are immature and ill-equipped to deal in matters of practicality and common sense.

<answer>:

D