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

<passage>:
disillusioned by the current crop of Romans. He found that neither purpose nor malice was enough Sometimes he wondered who Ninian really was. Obviously that story 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 Ninian sighed. "He's dissatisfied with the current social order and Ninian bought one of those smallish, almost identical houses that Ninian didn't know much about meals. When Martin was sixteen, Raymond took him aside for the talk Ninian had promised five years before. "The whole thing's all my brother Conrad's fault. You see, he's an idealist," Raymond explained, pronouncing the last word with distaste. Martin nodded gravely. He was a quiet boy now, his brief past a dim and carefully eradicated all current vulgarities. "And Conrad really got upset over the way Earth has been exploiting the not so intelligent life-forms on the other planets," Raymond Conrad is so impatient." "I thought, in your world, machines did all the work," Martin suggested. "I've told you—our world is precisely the same as this one!" Raymond past and think in the future. "I'm trying to talk to you as if you were an adult," Raymond said, "but if you will persist in these childish interruptions—" "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, Raymond went on blandly: "Anyhow, Conrad took it upon himself to feel particularly guilty, because, he decided, if it hadn't been for the fact that our great-grandfather discovered the super-drive, we 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." "How about a great-great-grandchild?" Martin couldn't help asking. Raymond flushed a delicate pink. "Do you want to hear the rest of this or don't you?" Anyhow, Raymond went on to explain, Conrad had bribed one of Farkas' 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, "Sounds like a good way of dealing with the problem," Martin observed. Raymond looked annoyed. "It's the way," he said, "to do away with it, rather than find a solution. Would you destroy a whole society in order to root out a single injustice?" "Not if it were a good one otherwise." 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 man, you know." Raymond's expressive upper lip curled. "So Conrad decided to go further back still and get rid of worthless character." "That would be me, I suppose," Martin said quietly. Raymond turned a deep rose. "Well, doesn't that just go to prove you mustn't believe everything you hear?" The next sentence tumbled out in a rush. "I wormed the whole thing out of him and all of us—the other The boy smiled slowly. "Of course. You had to. If Conrad succeeded in eliminating me, then none of you would exist, would you?" Raymond frowned. Then he shrugged cheerfully. "Well, you didn't really suppose we were going to all this trouble and expense out of sheer altruism, did you?" he asked, turning on the charm which all the Raymond didn't seem to think he really did. "After all," he pointed out defensively, "whatever our motives, it has turned into a good thing for you. Nice home, cultured companions, all the contemporary a ninny to locate in a mercantile suburb where any little thing out of the way will cause talk. How thankful I am that our era has completely disposed of the mercantiles—" "What did you do with them?" Martin asked. But Raymond rushed on: "Soon as Ninian goes and I'm in full charge, we'll get a more isolated place and run it on a far grander scale. Ostentation—that's the way to live here and now the richer you are, the more eccentricity you can get away with. And," he added, "I might as well be as comfortable as possible while I suffer through this "So Ninian's going," said Martin, wondering why the news made him feel him. "Well, five years is rather a long stretch for any girl to spend in 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 aren't very close, so it won't make a real difference." That was the sad part: he already knew it wouldn't make a difference. Raymond clapped him on the shoulder. "I knew you weren't a sloppy sentimentalist like Conrad. Though you do have rather a look of him, you know." "Never fear—it has a temporal radius," Raymond replied. "Factory "A splendid idea!" enthused Raymond. "I was just about to think of that myself!" When it came time for the parting, it was Ninian who cried—tears at that she'd come see him again. She never did, though, except at the very last. Raymond and Martin moved into a luxurious mansion in a remote area. The site proved a well-chosen one 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 from the future, all available artifacts were antiques. Otherwise, Martin accepted his new surroundings. His sense of wonder had become dreadful, of course," Raymond had said, "but so hilariously typical"—impressed him far less than had the suburban split-level aquarium. "No," Martin smiled, feeling rather silly, "but it would make the place such occasions, finding them vastly superior to all other forms of entertainment. "This sort of problem wouldn't arise in our day, Martin," Raymond Everything potentially unpleasant, like the mercantiles, had been deported. people—I expect you could call them people—there. Still—" he smiled shamefacedly—"couldn't stand by and see my own way of life destroyed, could I?" 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 dressed in overwhelming black and showed a great deal of grief. Raymond read the burial service, because they didn't dare summon a clerical cousin from the future they were afraid he might prove rather stuffy about the entire undertaking. "He died for all of us," Raymond concluded his funeral eulogy over Ives, "so his death was not in vain." But Martin disagreed.

<question>:
Raymond comments, " ' Ninian was a ninny to locate in a mercantile suburb where any little thing out of the will cause talk.  How thankful I am that our era has completely disposed of the mercantiles --' "  What irony can be found in this statement?

<options>:
A It truly is sad that someone who had the insight to create a plan as detailed could not have avoided living in such an area.
B He calls the master behind their grand plan "a ninny."
C Raymond has no right to call anyone "a ninny," as he is the dumbest descendant to arrive from the future.
D Rather than be grateful that gossip has been eradicated in the future, Raymond is thankful that an entire class of people has been eliminated.

<answer>:

D