How did Russia become a communist country?
 A.
 Russia fought in the Great War, and the Treaty of Versailles made Russia a communist country.
 B.
 During the World War I, Germany took control of Russia and made it a communist nation.
 C.
 The people of Russia had an election and voted to become a communist country.
 D.
 The people overthrew the tsar and Vladimir Lenin became dictator of Russia.