Answer: C. His openness to a new political system in Russia led, in part, to the breakdown of the Soviet Union.
Step-by-step explanation:
Mikhail Gorbachev believed that the only way to save Communism in the Soviet Union was to enact a series of reforms that would give Communism a friendlier face.
He allowed for decentralization of some industries and allowed elections that increased local government control. He even allowed the Soviet citizens to openly criticize their government. All of this led to the Communist party losing support and eventually led to the breakdown of the Soviet Union.