What Impact Did Military Service During the War Have on American

What impact did military service during the war have on American men?

A) Most felt that their war years were wasted, and they returned home angry and disillusioned.
B) Most did not want to return to their civilian lives and made a career out of the service.
C) Many became disillusioned with the American political system.
D) Many became less prejudiced after having served with people from backgrounds and cultures different from their own.