Answer will help you!
1. Introduction your claim
2. Develop your claim
I think that the element of the story that is least related tot he author's biographical story is the C. SMELL OF MILDEW IN A VIETNAMESE VILLAGE.
Tim O'brien wrote the story using his personal experiences. He was sent to Vietnam in his tour of duty. He's familiar with the geography of the Vietnamese coastline, he vividly describes the climate and landscape, and he feels the fear that the soldier felt during wartime.
He is afraid the others will make fun of him.<span>This is because they didn't believe Lucy, so it gave him reasoning to not want to tell them.</span>