Answer - D - Khrushchev was the first Russian leader who openly discussed Stalin's "crimes."
Key Takeaway: Nikita Khrushchev led the Soviet Union during the Cold War era and served as the First Secretary of the Communist Party of the Soviet Union. Openly discussing Stalin's crimes, Khrushchev was responsible for the de-Stalinization of the Soviet Union, for supporting the Soviet space program, and for slowly liberalizing the Soviet Union's domestic policy. Khrushchev was removed from power by his own party in 1964.