Edith Wharton wrote roman fever.
The answers is B, because as you see in the passage it explains various situations about a broad topic and the answer b is the most logical way to answer the question.
I say a would be good choice
Complex Sentences-<span> Has one main (or independent) clause and one or more dependent (or subordinate) clauses.</span>
Example:
<span>“I burned dinner but not the cake.”</span>