Answer :
Poland, Hungary, and East Germany join the Warsaw Pact, where they were Soviet satellites that had little choice. Thus, option (d) is correct.
What is Warsaw Pact?
An alliance for mutual defense was created by the Warsaw Pact. Albania, Bulgaria, East Germany, Czechoslovakia, Poland, and Romania, Hungary were also represented, along with the seven Soviet Union countries.
During the Cold War, certain countries were informed about the Soviet satellite nation. These were countries that supported the Soviet Union but were also affected by it and under its influence.
As a result, option (d) is correct.
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