B. depth
Having depth means the opposite of being superficial. To get a measure of depth, one must measure in a downward manner. (for the ex: to measure the depth of the Caribbean Sea, we need to measure from the surface to the floor. That would be our depth measure).
As Faustus is contemplating and having second thoughts, Mephastophilis gives him rich gifts and a book of spells to learn. He offered Faustus a choice between good and evil when he warned him about the horrors of hell. Thank you for posting your question. I hope this answer helped you.
The answer is D, I think.
