Democracy hope this helps
The Berlin blockade was a blockade by the Soviet Union (USSR) of the western part of Berlin, (controlled by the US, Britain, and France) The USSR wanted all of Berlin to themselves, and so blockaded the roads to stop the NATO nations from sending supplies to the war-torned Berlin. However, the US started the Berlin Airlift, transporting thousands, if not, millions of supplies to West Berlin over a period of times (and even Christmas Gifts :D)
hope this helps
Answer: C
Explanation: The Russian Revolution took place in the final days of World War I. After Russia removed itself from the war as a result of the Revolution, the Russian Empire transformed into the Union of Soviet Socialist Republics (USSR), which replaced the country's monarchy with the first Communist state.