Which statement about the political competition between the Soviet Union and the United States in the Vietnam War is true? The Soviet Union and the United States debated the fate of Vietnam in the United Nations as North and South Vietnam battled for control of the country.

United States delegates convinced the United Nations to enact economic sanctions against the Soviet Union for its actions in South Vietnam.

The Soviet Union supported North Vietnam in its resistance of an attempted takeover by South Vietnam and its American allies.

The United States sent troops to South Vietnam in a failed attempt to prevent a Soviet-backed communist takeover of that nation.