Answer:
A—Mikhail Gorbachev
Step-by-step explanation:
Although Mikhail Gorbachev was committed to preserving the Soviet state and to its socialist ideals, Gorbachev believed significant reform was necessary. He withdrew from the Soviet–Afghan War and embarked on summits with United States president Ronald Reagan to limit nuclear weapons and end the Cold War. His policies "Glasnot and Perestroika", allowed citizens to have better living conditions and more freedoms.