Question

ow did changes in the Soviet Union affect people in other communist countries?

Eastern Europeans began to rebel against their governments.
China was inspired to liberalize its economy.
Cubans rioted to obtain the same reforms as the Soviets.
North Korea started negotiations to unify with South Korea.

Answer 1

Eastern Europeans began to rebel against their governments.

Why: Mikhail Gorbachev’s reforms (glasnost and perestroika) and the Soviet decision to stop using force to keep Eastern Europe in line (ending the Brezhnev Doctrine) removed the guarantee of Soviet intervention. That encouraged uprisings and peaceful revolutions across Eastern Europe in 1989 (Poland, Hungary, East Germany, Czechoslovakia, Romania, etc.). The other options are inaccurate: China did not liberalize politically in response, Cuba did not experience comparable riots for Soviet-style reforms, and North Korea did not start reunification talks.