The word you are looking for that describe a noun is an adjective
The writer uses A) metaphor here.
Clegg Simmons isn't really a cookie, it is an expression used to denote somebody really smart.
B. A semicolon
I believe that would be the answer to your question
B.) As a stickler about statistics, I was disturbed by Mr. Schlosser's cavalier manipulation of data, which produced some startling — and, frankly, unbelievable — "facts."
Answer:
D. decrease the corporate income tax.: