the only two answers listed that even remotely work are B and C, but B can be eliminated as it doesn't match the tone of the rest of the poem, which talks about honor and dying nobly. Therefore, the answer is clearly C.
I would say that the best theme to address those key points listed, would be: A. Feeling hopeless is unreasonable when faced with challenges. In other words, we shouldn't feel as if the end of that world is at hand, just because challenges and tests come our way. That is to be expected. Hope that helps.
Answer:
B. It makes the passage more interesting by contrasting the narrator's comments with his thoughts.
Explanation:
The dialogue better shows the conflict between what he is saying to his friend, and what he is feeling.