Question

During the Cold War, how were the policy of containment and the domino theory related?
The policy of containment helped the USSR establish a number of buffer zones, or “dominoes.”
The US believed that the policy of containment would make it easier for countries to fall to communism like dominoes.
The policy of containment and the domino theory had no direct connection to one another.
The US worried that if communism could not be contained, then countries would fall to it one by one, like dominoes.

Answer 1

"The US worried that if communism could not be contained, then countries would fall to it one by one, like dominoes."

Explanation: Containment was the US strategy to stop the spread of communism; the domino theory was the belief that if one country fell to communism, neighboring countries would follow. The domino theory provided a key rationale for pursuing containment.