Answer:
mutually assured destruction was an agreed upon course of action that stated if two countries were to get into a nuclear war, a majority of the populations of both the countries would dwindle and utterly destroy both. Because both the U.S. and U.S.S.R. did not want to lose themselves as countries and their populations, the Cold war never had any nuclear action taken, hence the name Cold War.
Explanation:
The Soviets reacted aggressively to reform attempts because they feared losing control over large parts of eastern europe.
<h3>The Soviet Union</h3>
The Soviet Union which is formally known as the Union of Soviet Socialist republics was a communist state that spanned much of Eurasia from 1922 to 1991.
The Soviet union portrayed a federal type of government but in reality its government was highly centralized.
The Soviet union were against reform attempt because they feared they would lose control of a large section of Eastern Europe.
Learn more about the Soviet union at brainly.com/question/1310325
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D. Is The correct Answer Hope this helps :D