Okay, so this is a little hard to answer when you do not have the excerpts, but I will try my best to work a answer out of the headings. I think your answer would be C. It makes sense, the info that comes after the titles, so If I were you I would go with C.
B. "Ambush" talks of a soldier who can’t share his feelings with his daughter but hopes to someday, while "Symptoms" deals with soldiers who have lost all memories of the worst experiences of war.
