The Three P's That Largely Explain the Cultural Upheavals of the 1960s

The three P's that largely explain the cultural upheavals of the 1960s are

A) poverty, political radicalism, and protest against authority.
B) public schools, parietal rules, and parental restrictions.
C) population bulge, protest against Vietnam, and prosperity.
D) patriotism, prowar enthusiasm, and perfectionism.
E) the pill, pot, and popular rock music.