The correct answer is A) the Soviet Union gained influence across Eastern Europe during and after World War II.
Using the map of Eastern Europe, we can determine that the Soviet Union gained influence across Eastern Europe during and after World War II.
The Soviet Union occupied many territories such as Latvia, Eastern Polony, Estonia, Lithuanian Ukrainian, and Rumania. The Soviet Union military occupation was part of the pact with the Nazis and represented a form of control and dominance in the Cold Worl era for Russia. As the map shows, many countries of Eastern Europe were under the control of the Soviet Union, which gained influence across that region during and after World War II.