In the Vietnam War, the Tet Offensive of 1968 showed that

Responses
A a peace settlement was close at hand.a peace settlement was close at hand.
B American forces were solidly in control of South Vietnam.American forces were solidly in control of South Vietnam.
C the Vietcong could strike any major city in South Vietnam.the Vietcong could strike any major city in South Vietnam.
D the My Lai massacre was not going unnoticed by communist forces.the My Lai massacre was not going unnoticed by communist forces.

C the Vietcong could strike any major city in South Vietnam.