请教一个ibt OG上的阅读题

死活想不明白，请好心的大虾帮忙看看！OG第70页第一题，内容如下：

阅读文章的内容

Numerous biological structures and chemicals appear to be involved in aggression. One is the hypothalamus, a region of the brain. In response to certain stimuli, many animals show instinctive aggressive reactions. The hypothalamus appears to be involved in this inborn reaction pattern: electrical stimulation of part of the hypothalamus triggers stereotypical aggressive behaviors in many animals. In people, however, whose brains are more complex, other brain structures apparently moderate possible instincts.

题目

What evidence indicates that aggression in animals is related to the hypothalamus?

a) Some aggressive animal species have a highly developed hypothalamus.

b) Artificial stimulation of the hypothalamus results in aggression in animals.

c) Animals behaving aggressively show increased activity in the hypothalamus.

d) Animals who lack a hypothalamus display few aggressive tendencies.

答案

我选b，答案是c。谁帮忙看看为什么？ETS的解释说b is contradicted by the paragraph...看不出怎么contradict了...

谢谢各位了！

晕了，关键OG上的解释还写得振振有词的...

谢谢！说的有道理，应该是result in的问题。

不过您说的electrical stimulation不就是artificial stimulation?

想来想去可能就是stereotypical那个词，与选项中result in有矛盾了...

我来发表一下拙见：这个题有点坏哦，是属于考逻辑考智商的，大家别被忽悠了。

乍一看，B肯定没问题嘛。细一想，问题不少：

1）段首即说了，很多的生理结构和化学物质与aggression有关，注意，是有关，不是决定（即不是result in）。

2）更重要的是，段中两次提到many animals，注意，不是all animals，B选项有偷梁换柱之嫌（部分换整体）。

综上，B选项过于绝对化了。

既然B不对，C选项又与题沾边，那就选它啦。