When the sniper begins to gibber to himself, the reader can conclude that
A. the act of killing has finally gotten to him.
B. the pain of his wound has become too much to bear.
C. the realization that he has killed his brother has set in.
D. the war has made him a fanatic.
The answer is letter A. When the sniper begins to gibber to himself, the reader concluded that the pain of his wound has become too much to bear. He cannot talk well because of the pain and almost losing his breath.