In the early 1900s, after the Bolsheviks began to rule Russia, a. the tsar and his family left Russia for Germany. b. the fight for power resulted in a three-year civil war. c. the Treaty of Brest-Litovsk was no longer honored. d. the White Army declared support for the Bolsheviks.

Option: b. the fight for power resulted in a three-year civil war.

Explanation:

After the Russian Revolution, which began in February 1917, Tsar Nicolas II forced to abdicate. It also ultimately ended Romanov dynastic rule in Russia. The revolution also resulted in a three years war in Russia between common people (Red) and the imperialists (white) that later led to the establishment of a communist government.  

Explanation:

Russian civil war was fought from November 1917 to October 1922.  The Czar Nichols second lost his throne after the Russian revolution and people organised themselves to take over Russia. Workers and farmers  supported the communists  while other supported the people who were loyal to the crown.  

Whites were the people who opposed the communists while Reds were communists. The Red army won the war because their army was well organised. After their victory they established Soviet Union.  

Many foreign countries were afraid of the communist victory , they were worried that the communism would also spread to their countries and hence they intervened in the civil war and helped the groups against communists.

b) new machinery hope i