Usually the exposition is where you meet the character and get introduced to the problem.
The correct answer is B. The poet Keats studied to become a doctor.
Answer: C
Explanation:
imagine this as a movie. The way how the character is screaming run! it would make me be on edge.
You will need to add the commas as follows:
I think Robert, Mary Jane, Andrea, Lee Ann, and Milton should be on the planning committee.
There are 4 commas.