The Soviets established the Warsaw Pact to Answer Choices: A) crush independence movements in Hungary and Poland. B) solidfy their control over...

The best answer to this (of the ones you suggest) is B. 
The Soviets created the Warsaw Pact to make their control over Eastern Europe more
secure.

The Warsaw Pact was created to be a counterbalance
to the United States and its NATO alliance.  The Soviets created the pact in part to try
to ensure that the Western nations would not be able to overrun
them.

However, a major purpose of the Warsaw Pact was to
pull the countries of Eastern Europe closer to the Soviet Union.  As the salem-history
link below says,

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The period following Stalin’s death in 1953 had
seen considerable diversity and agitation for increased independence on the part of the
Eastern European satellite
states...

It was in response
to these actions that the Soviets created the Warsaw Pact.