The Attempt to Nominate an Anti-War Democratic Candidate for President

The attempt to nominate an anti-war Democratic candidate for president in 1968 suffered a crippling blow when

A) Senator Eugene McCarthy withdrew from the race before the Democratic convention.
B) Senator Robert Kennedy was assassinated after winning the California primary.
C) pro-war vice president Hubert Humphrey won the Oregon and California primaries.
D) militant leftist demonstrators at the Chicago convention caused a backlash in favor of Humphrey.
E) public opinion turned back in favor of the war after the Tet offensive.