段5：①The researchers suggest that capuchin monkeys, like humans, are guided by social emotions. ②In the wild, they are a cooperative, group-living species. ③Such cooperation is likely to be stable only when each animal feels it is not being cheated. ④Feelings of righteous indignation, it seems, are not the preserve of people alone. ⑤Refusing a lesser reward completely makes these feelings abundantly clear to other members of the group. ⑥However, whether such a sense of fairness evolved independently in capuchins and humans, or whether it stems from the common ancestor that the species had 35 million years ago, is, as yet, an unanswered question.
25.What can we infer from the last paragraph?
[A] Monkeys can be trained to develop social emotions.
[B] Human indignation evolved from an uncertain source.
[C] Animals usually show their feelings openly as humans do.
[D] Cooperation among monkeys remains stable only in the wild.
答案：B
问：25题D选项的错误原因是下列哪项？
A : 选项说猴子之间合作稳定的前提是“只有在野外时”（only in the wild），而原文所说的前提为only when each animal feels it is not being cheated（只有当每只猴子感到自己没有被欺骗时），选项曲解原文
B : 原文提到猴子和人类一样有社会情感，而且是a cooperative, group-living species（是相互合作的群居物种），说明它们之间的合作不论在什么环境下都是稳定的，选项捏造信息
C : 原文并未提及该选项中的任何内容，选项无中生有
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