Question

How did the USSR control countries behind the Iron Curtain?

Several political parties were allowed so that people would support USSR control.
Elections often had many candidates on the ballot so that several supported the USSR.
The USSR supported many freedoms so that the populations could control themselves.
Political opponents were imprisoned or executed for disagreement with USSR policies.

Answer 1

other guy is right ........

Answer 2

I’d say the last answer is correct knowing the nature of the USSR. Political opponents were imprisoned or executed for disagreement with USSR policies.