The correct answer is B) desertion among the troops.
The statement that indicates the low morale in the South Vietnamese army is "desertion among the troops."
The United States troops and espionage agencies infiltrated in Vietnam realized that low morale in the South Vietnamese troops was a real issue. Maintaining the morale of South Vietnam's soldiers was a priority. The war had been fought for many years and the troops were exhausted, mentally and physically.
Drugs were rampantly used by soldiers to make them fearless, have more energy and renew themselves of their low morale in the battle field. This was highly used even by US soldiers, which in the end became a problem.
