求解36套exercise6中的第二题

mazzy215

原文：
  Some modern anthropologists hold that biological evolution has shaped not only human morphology but also human behavior. The role those anthropologists Line ascribe to evolution is not of dictating the details of human behavior but one of imposing constraints— ways of feeling, thinking, and acting that ―come natural-
ly‖ in archetypal situations in any culture. Our―frailties‖ -emotions and motives such as rage, fear, greed, gluttony, joy, lust, love—may be a very mixed assortment, but they share at least one immediate quality: we are, as we say, ―in the grip‖ of them. And thus they give us our sense of constraints.

  Unhappily, some of those frailties—our need forever-increasing security among them—are presently maladaptive. Yet beneath the overlay of cultural detail, they, too, are  said to be biological in direction, and therefore as natural to us as are our appendixes.We would need to comprehend thoroughly their adaptive origins in order to understand how badly they guide us now. And we might then begin to resist their
pressure. (174 words)

问题：
2. It can be inferred that in his discussion of maladaptive frailties the author assumes that
(A) evolution does not favor the emergence of adaptive characteristics over the emergence of maladaptive ones
(B) any structure or behavior not positively adaptive is regarded as transitory in evolutionary theory
(C) maladaptive characteristics, once fixed,make the emergence of other maladaptive characteristics more likely
(D) the designation of a characteristic as being maladaptive must always remain highly tentative
(E) changes in the total human environment can outpace evolutionary change


看了普度哥的解释，正常不正常的。。我看不懂啊，还请大神指点一二
（顺便请问大家如何在CD上搜索内容，比如这个问题我总感觉会有人问过，但是我搜索关键词搜不到ε=(´ο｀*)))唉）