Answer:
D. Henry's doubts about whether he will be courageous in battle or flee to his family.
Explanation:
Stephen Crane's "The Red Badge of Courage" is a war novel set during the American Civil War. The protagonist, Henry Fleming, struggles with his 'glory-seeking' need and the reality of actually fighting in the war.
A conflict is when a character finds his path to attaining his goal blocked by any obstacle, that can be in any form. Depending on the conflict, the struggle to get past that conflict helps the character to develop. And in this novel, the major conflict of man vs. self is seen in Henry's doubt of whether he will be able to courageously fight in the war he had volunteered or flee the war.
Thus, the correct answer is option D.
