Answer:
B. People traveled freely between East and West Germany.
Explanation:
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The most important effect of opening East Germany borders was that East and west Germany merged into one nation.
The reunification of East and West Germany occured on 3 October 1990.
That day heralded the collapse of German Democratic Republic and five new federated states on its former territory joined the Federal Republic of Germany.
East and West Berlin were reunited by the opening of the eastern boarders and they joined the Federal Republic as a full-fledged federated city-state.
Learn more about the Reunification of Germany at https://brainly.com/question/503277
