The correct answer is Option 2 - C, D, A, B
C- Independence movement began in Lithuania.
D- the Soviet Union declared that the Warsaw Pact members were free to decide their own futures.
A- Russian parliament declared its independence from the Soviet Union.
B- Gorbachev's resignation marked the end of the Soviet Union.
Correct chronology of the given events:
In 1988, the independence movement began in Lithuania.
In 1989, the Soviet Union declared that the Warsaw Pact members were free to decide their own futures.
In 1990, the Russian parliament declared its independence from the Soviet Union.
In 1991, Gorbachev's resignation marked the end of the Soviet Union. | 
