What effect did direct United States' involvement in Vietnam have on the general population in the United States during the 1960s and 1970s?
A
The federal government suspended the civil liberties of the general population and declared martial law.
B
Several anti-war groups run by students, businesses, and veterans banded together to create the largest anti-war movement the United States had ever known to protest the Vietnam war.
C
Anti-war students bombed several ROTC buildings on college campuses, and returning veterans were treated with hostility and disgust.
D
Both B and C