It shows character may be implying, rather than stating, something
Wow! is the interjection because it is a word (interjections may also be phrases) separated from the sentence by an exclamation point.
Answer:
A to paint a picture of what the camp looks like
Explanation:
It doesn't show how the camp will be difficult so it isn't b. C is wrong bc it doesn't suggest bad people or nice people at the camp. D is wrong bc its not in a joking manner, so yeah ur answer is A
A. He reflects back and describes his initial optimism of the war.
Everyone initially feels that optimism going into a battle. The idea of victory is something easy to see. But it gives the idea that possibly it may not turn out exactly as he hopes in the final sentence.