The correct answer is B.fall of the Berlin Wall
The Prague Spring happened in the 60s, thirty years before the Soviet Union would actually fall. The fall of the Berlin wall showed that other countries can separate themselves from the Soviet's grasp and this led other countries, even those that were in the Union such as Lithuania to start fighting for their independence.
Is this a question or an answer to a question
In the east the roman catholic church and the orthodox church emerged from the schism.
Truman implemented this in response to two threats one being a communist-led uprising against the government in Greece and two being Soviet demands for some control of Turkey's Dardanelles. It was implemented in Berlin when Truman ordered U.S. planes to fly supplies to the people of West Berlin in response to the Soviet Union's 11 month blockade on Berlin.. or something among those lines