Question

President Eisenhower used domino theory to argue that

the United States had to prevent the spread of Communism

no nation could win a nuclear war because both nations would be destroyed

the threat of a nuclear war was enough to prevent an enemy attack

Answer 1

The correct answer is: the United States had to prevent the spread of Communism.

Explanation: Domino theory held that if one country fell to communism, neighboring countries would follow, so Eisenhower argued the U.S. needed to stop its spread (especially in Southeast Asia). The other options describe mutual assured destruction and deterrence, not domino theory.