Why did mikhail gorbachev have trouble retaining support from hard-line communists? a. he denounced boris yeltsin. b. he threatened to dismantle the communist system. c. he promised reform in eastern europe. d. he refused to crush rebellions in eastern europe.

The correct answer option is D. He refused to crush rebellions in Eastern Europe.

Explanation:

Mikhail Gorbachev had trouble retaining support from the hard line communists because he refused to crush the rebellions in Eastern Europe.

Mikhail Sergeyevich Gorbachev was a Russian Soviet politician who was also the General Secretary of the Communist Party in the late 1980's.

The local reforms nuclear decommissioning contracts also helped in bringing the Cold War to an end.

The correct answer is D) he refused to crush rebellions in Eastern Europe.

Mikhail Gorbachev had trouble retaining support from hard-line communists because he refused to crush rebellions in Eastern Europe.

When everything seemed that the Soviet Union would never change, Mikhail Gorbachev started a series of changes called perestroika and glasnost that transformed the world scenario and the relationships between Russia and the West World. Gorbachev opened the door to foreign investment, gave some liberties to the soviet people, and ended up dissolving the Soviet Union on December 26, 1991.

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

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it was douglas macarthur..