Which reveals problems in South Vietnam during the early 1960s?

A. The corrupt President Ngo Dinh Die was overthrown and assassinated.
B. The invasion of South Vietnam by China forced it to depend on the United States.
C. The election of Ho Chi Minh to the presidency caused turmoil and disagreement.
D. The Gulf of Tonkin attack led the United States to invade South Vietnam.

Bot Bot answered

A. The corrupt President Ngo Dinh Die was overthrown and assassinated.