What strategy did the United States adopt in Vietnam based on "domino theory"?

Group of answer choices

The United States and the Soviet Union negotiated the division of Vietnam into separate spheres of influence that eventually became North and South Vietnam.

The United States negotiated the peaceful transition of power from colonial French administrators to popularly elected Vietnamese leaders.

The United States withdrew its troops from Vietnam after a strong North Vietnamese offensive during the Vietnamese new year celebration.

The United States committed millions of troops to the conflict in Vietnam because it feared that surrounding countries would fall to communism if Vietnam did.

Option D, The United States committed millions of troops to the conflict in Vietnam because it feared that surrounding countries would fall to communism if Vietnam did, is the right answer.

Explanation:

A theory that became prominent during the period between the 1950s to the 1980s came to be known as the Domino Theory. According to this theory, in the event that Vietnam is influenced by communism, then the encompassing countries would also follow in a domino effect. This theory was explained by Dwight D. Eisenhower, the then President of the United States, on 7th April 1954, to News Conference. On the basis of this theory, The United States decided to get involved in the Vietnam Conflict.

b) the confederacy had to pay all union war expenses.