When fighting in Vietnam, American soldiers used guerrilla warfare tactics to confuse the Viet Cong.
destroyed huge jungle areas so the Viet Cong could not hide there.
located and defeated the Viet Cong easily.
set up hidden camps in villages and underground locations.

The answer is B

Explanation:

The Viet Cong were experts of guerrilla warfare. The Americans in response burned down large parts of Vietnam and destroyed the environment using "Agent Orange". A Gas meant to kill the Viet Cong

everything but B was done by the Viet Cong

hope this helps :)

not really sure i needed the points. sorry

roosevelt, a progressive reformer, earned a reputation as a "trust buster" through his regulatory reforms and anti-trust prosecutions. his "square deal" included regulation of railroad rates and pure foods and drugs; he saw it as a fair deal for both the average citizen and the businessmen.