Question

U.S. relations with the Soviet Union shifted during the Truman administration because the:

West learned of the gulags and other abuses.
Soviet Union withdrew from Eastern Europe.
Soviet Union destroyed their stockpile of nuclear weapons.
Soviets launched a propaganda campaign in the United States.

Answer 1

(I think) it's A. The west learned of gulags and other abuses. Sorry if this turns out to be wrong.

Step-by-step explanation:

The US decided it could no longer stand by the Soviet Union when it enforced totalitarianism in independent nations and was deemed a threat to national security.