Conservationist: The population of a certain wildflower is so small that the species is headed for extinction. However, this wildflower can cross-pollinate with a closely related domesticated daisy, producing viable seeds. Such cross-pollination could result in a significant population of wildflower-daisy hybrids. The daisy should therefore be introduced into the wildflower’s range, since although the hybrid would differ markedly from the wildflower, hybridization is the only means of preventing total loss of the wildflower in its range.
34. Which one of the following is an assumption on which the conservationist’s reasoning depends?
(A) The wildflower currently reproduces only by forming seeds.
(B) The domesticated daisy was bred from wild plants that once grew in the wildflower’s range.
(C) Increasing the population of the wildflower will also expand its range.
(D) Wildflower-daisy hybrids will be able to reproduce.
(E) The domesticated daisy will cross-pollinate with any daisy like plant.
请问答案是选B还是D呢？看不太懂了....谢谢。
狒狒选出来的题目还是和GMAT的题目有点不一样啊感觉....
我觉得这个题目选D, 这个题解释起来, 还是取非削弱比较容易...
如果选项D不成立, 也就是这个杂交品种不能reproduc, 那么严重削弱结论, 基于这种情况, D是必须的assumption.
我不是很明白楼主为什么纠结在选项B上, daisy是否bred from 那个range的plants, 对于结论没有什么帮助, 如果杂交是唯一能阻止wildflower灭绝的办法, daisy就算不是那个range的, 又怎么样呢? 还不是应该杂交来防止绝种吗, 所以这个不能算是必要的assumption
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