The correct answer is B. which is free for all full-time faculty.
Nonrestrictive clauses are often found separated from the rest of the sentence using commas, as is the case here. It means that that clause is not essential for the meaning of the entire sentences, and can thus be deleted without the loss of the meaning.
Answer:
you (should ) see a doctor
who trained me got a manager
An appropriate topic matches the interest and expectations of the audience :)
A. If you need a basketball, you can borrow our's.