The exposition is that Bruno is very upset because his maid is packing all his things and he doesn't understand why she would be touching all of his stuff.It turns out that his father is a German officer during World War II and his job is requiring a move from Berlin to Auschwitz. ( in Poland)
Answer:
Many Americans opposed the war on moral grounds, appalled by the devastation and violence of the war. Others claimed the conflict was a war against Vietnamese independence, or an intervention in a foreign civil war; others opposed it because they felt it lacked clear objectives and appeared to be unwinnable
D is the most understandable answer