The answer is D this will help you a lot
A central or main character can also be known as a protagonist, even if the character's intentions, objectives, dreams, or aspirations are negative, evil, or ill-willed.
The answer is B. If we input the answer into the sentence it makes the most sense and it is more consistent in verb tense then the others.
"Hassan is most productive when he has several hours at a time to focus on his work"<span />
The answer with the correct punctuation is:
The counselor helped Loretta with her problems; he also found work for her at the youth shelter.