When the sniper begins to gibber to himself, the reader can conclude that

Athe act of killing has finally gotten to him.
Bthe pain of his wound has become too much to bear.
Cthe realization that he has killed his brother has set in.
Dthe war has made him a fanatic.

Verified Answer :

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.

The correct answer is A.

When the sniper begins to gibber himself, the reader can conclude that the act of killing has finally gotten to him.