How Did Vietnam Affect Black Participation in the Armed Forces

How did Vietnam affect black participation in the armed forces?

A) As with every other war in American history, blacks were relegated to menial tasks, and rarely fought in combat roles.
B) Blacks refused to serve in the Vietnam War, thinking it was a white man's war to dominate a darker skinned people.
C) Blacks served in increasing percentages, and were sent out for combat frequently.
D) Vietnam actually saw a return to segregated military forces.