Answer:
C.
Step-by-step explanation:
Mikhail Gorbachev was the eight and the last leader of the Soviet Union. After coming in the leadership of the Soviet Union, he brought the practice of reform in Soviet. Two policy of glasnost and perestroika were applied. The policy of glasnost gave the people right to freedom and freedom to speech.
The purpose of his reform was to enable his people to trust the government and may not live in fear, like under other leaders.
So, the correct answer is C.