What caused the Red Scare after World War II? (1 point)

The U.S. government wanted to monitor the activities of anyone with
left-leaning political beliefs.
The U.S. government wanted to end opposition to the war in Vietnam
quickly.
The U.S. government wanted to prevent spying by the Soviet Union
during the Cold War.
The U.S. government wanted to weaken groups with right-leaning
political beliefs.

The U.S. government wanted to prevent spying by the Soviet Union during the Cold War.