If it has to do with emotional appeal, and not logic, stats, or credibility.
I would go with answer choice C, because the main focus was his biggest fear of when there is a quiet time, and how the next attack weighed him down like a pile of bricks. He then goes on to give examples of the times where he was in battle. I would go with answer choice C.
a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause, as in “the man on the platform,” “she arrived after dinner,” “what did you do it for ?”.