Arrange the following events in chronological order:

A- Russian parliament declared its independence from the Soviet Union.
B- Gorbachev's resignation  marked the end of the Soviet Union.
C- Independence movement began in Lithuania.
D- the Soviet Union declared that the Warsaw Pact members were free to decide their own futures.

C, D, A, B

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.