The writer uses A) metaphor here.
Clegg Simmons isn't really a cookie, it is an expression used to denote somebody really smart.
I don't see any thing wrong with the sentences
<span>c-a character who has a complex personality</span>
The cerebellum is part of the hindbrain in vertebrates. It lies between the brainstem and cerebrum in humans and helps regulate motor movements, helps us perceive senses and coordinates voluntary movements like posture and balance.