我选D。想问如果D改成each language occupied a distinct area of the brain in adult, while 是不是也正确了？while 跟whereas的用法问题吧

Q2:

According to findings derived from functional magnetic resonance imaging (MRI), the area of the brain in which a second or third language is stored depends on the age of the language learner; whereas each language occupies a distinct area of the brain in an adult learner, language areas overlap in a young child.

1. whereas each language occupies a distinct area of the brain in an adult learner,
2. whereas for adults each language occupies a distinct area of the brain and
3. each language occupies a distinct area of the brain when they are learned by an adult, while
4. each language in adults occupied a distinct area of the brain, while
5. each language occupying a distinct area of the brain for an adult learner, and

   Answer: A

no

D 错在occupied

应该是一般现在时，E同理

1. whereas each language occupies a distinct area of the brain in an adult learner,
2. whereas for adults each language occupies a distinct area of the brain and －－－－－分号后只有whereas从句错
3. each language occupies a distinct area of the brain when they are learned by an adult, while－－－繁琐的主句表达，且when从句里的they没有指代，前面时each