Answer:
B)Gorbachev began using openness to restructure the Soviet Union.
Step-by-step explanation:
Mikhail Gorbachev is a Russian lawyer and politician who was secretary general of the Central Committee of the Soviet Union Communist Party from 1985 to 1991 and head of state of the Soviet Union from 1988 to 1991. He received the Nobel Peace Prize in 1990 and is currently leader of the Union of Social Democrats, a party formed after the official dissolution of the Social Democratic Party of Russia in 2007.