What separated Eastern European countries from the rest of the world immediately following World War II?

A. It was occupied and controlled by the Soviet army.
B. It was much more intact than Western Europe or East Asia.
C. It had not participated in the war and was therefore much more prosperous.
D. All of its communication lines had been destroyed during the war.

Eastern European countries post-World War II were under Soviet influence as satellite states, adopting communism until the Soviet Union's collapse in 1991.

Explanation:

Eastern European countries were separated from the rest of the world immediately following World War II primarily due to the influence of the Soviet Union. Soviet troops occupied countries such as Germany, Poland, Czechoslovakia, Hungary, Romania, and Bulgaria, making them satellite states under Soviet control. These countries adopted Soviet-style communism and were part of the Warsaw Pact, experiencing limited sovereignty until the collapse of the Soviet Union in 1991.

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