How did the Soviet Union come to dominate Eastern Europe after World War II?

Responses
A by keeping troops in the region and setting up communist governmentsby keeping troops in the region and setting up communist governments
B by supporting communist parties in democratic electionsby supporting communist parties in democratic elections
C by agreeing with the United States to divide Europe in halfby agreeing with the United States to divide Europe in half
D by making a separate peace agreement with Germany

A. by keeping troops in the region and setting up communist governments. After World War II, the Soviet Union established communist governments in the Eastern European countries it had liberated from Nazi occupation. The Soviet Union also maintained a significant military presence in the region, which helped to enforce its political control over Eastern Europe. This came to be known as the Soviet Bloc or Eastern Bloc.