[求助]OG阅读set4第一题(内详)

原文:H ,a reagion of the brain. Inresponse to certain stimuli, many animals show instinctive aggressive reactions. The H appears to be involved in this inborn reaction pattern: electrical stimulation of part of the H triggers stereotypical aggressive behaviors in many animals. In people, however, whose brains are more complex, other brain structure apparently moderate possible instincts.

问:what evidence indicates that aggretion in animals is related to the H?

A.Artificial stimulations of the H results in aggression in animals

B.Animals behaving aggressively show increased activity in the H

为什么选B?看过解答,但还是说服不了我

求各位N人解答则个.先谢过了

我是这么理解的。

A 说的是人工的H刺激会导致动物的aggression。  但是动物的aggression（自然，非人工刺激）也可能是其他原因造成的，未必与H相关。

B 说的是动物aggressive的时候H的activity增加，关联较明确。

多谢