contestada

How did Mikhail Gorbachev's policies contribute to the collapse of communism in Eastern Europe?
A. Perestroika showed communist countries that the free enterprise system had failed.
B. Glasnost warned other countries that the Soviets were in control.
C. Perestroika showed communist countries the strength of the Soviet economy.
D. Glasnost was a signal to other countries that they could get rid of communism.