PLS HELP
Why did the United States send soldiers to Vietnam?
A) China had gained control of North Vietnam and war working to unite Vietnam under a communist government.
B) North Vietnam (aided by communists in South Vietnam) was trying to unite Vietnam under a communist government.
C) The Soviet Union had sent forces into South Vietnam to unite Vietnam under a communist government.
D) Japan had gained control of North Vietnam and war working to unite Vietnam under a communist government.