Reading Comprehension (RC) | Re: Prior to the fall of the Union of Soviet Socialist Republics (USSR), M

In order to understand why an author uses a word, it is important to examine the context of that word's usage:

"Only a few years after Gorbachev implemented changes that would have been unthinkable and antithetical to the philosophy of previous leaders like Lenin, Stalin, and Khrushchev, the USSR fell."

A. The change that is being referred to here is perestroika (economic
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