How did the October Revolution of 1917 transform the political structure of the Russian Empire after World War I? a
The Mensheviks deposed the czar and formed the Provisional Government
b
The Allies intervened and returned territory to Poland
c
The Bolsheviks seized control and established the Soviet Union
d
The Warsaw Pact created unity and strengthened Eastern Europe

The Russian Revolution took place in 1917, during the final phase of World War I. It removed Russia from the war and brought about the transformation of the Russian Empire into the Union of Soviet Socialist Republics (USSR), replacing Russia's traditional monarchy with the world's first Communist state.

You can spend a month in one stage so I don't really think there is a timetable. But my guess would be six months

Explanation: