**select all that apply.**

a breakdown in morale and discipline of american troops was evident through:

a. racial disturbance
b. attacks on officers
c. desertion
d. drug use

The correct options are;

B. attacks on officers

C. desertion

D. drug use

Explanation:

The Breakdown in the morale and discipline of American troops during the Vietnam war of 1970 between 1955 to 1975 was evident in attack on officers (otherwise known as fragging), high rate of drugs use among soldiers, and desertion. It was the most trying time for the American Military, and was the only time in history when the American military experienced the highest breakdown of morale and discipline.

the answer is definitley b!