Answer:
Given the fact that he was the one in charge of the other soldiers’ well-being, he felt he could have done something to prevent Lavender’s death.Also, O’Brien seems to exaggerate in his vivid accounts of the experience the soldiers in the war. This collection of short stories is devoted to a platoon of American soldiers who fight in the Vietnam
Explanation:
Answer: B!!
because it talks about nonliving things.
There's nothing really that means exactly "laughing at oneself," as far as I know, but some related words are self-ridicule and self-belittlement, though these have a more negative connotation. Hope this helps.