Under Nikita Khrushchev’s leadership the Soviet Union began to de-Stalinize, meaning that it

De-Stalinization was Khrushchev’s effort to reduce Stalin’s influence and undo some of his policies, including easing political repression and allowing limited domestic reforms. It did not mean the Soviet Union stopped interfering abroad or signed an arms reduction treaty with the United States. Therefore, the best answer is “became more open to domestic reforms.”

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