D. It creates a clear picture of what people at home felt about the
Vietnam War.
Explanation:
The author tries to explain how people back home was feeling, and how that affected the way he felt about his dad fighting in Vietnam, it makes for a great explanation of how people felt in the United States about the soldiers and the war in Vietnam, and that gave the author contradictory feelings towards his dad fighting in Vietnam and it added up to his already bad feelings towards his dad being abscent from home.
