Answer:
The correct answer is A. Many people supported Lenin because didn't want to keep Russia in World War I.
Explanation:
Vladimir Lenin was a Russian revolutionary, statesman and philosopher; leader of the October Revolution of 1917 in Russia; founder of the first Communist Party and the Comintern; founder of the Russian Soviet Federative Socialist Republic and the Soviet Union. During his rule, the Russian Empire was dissolved and replaced by the Soviet Union, a one-party socialist state; industry and other industries have been nationalized and broad social reforms have been introduced. His theoretical contributions to Marxist thought are known as Leninism, which together with Marxist economic theory is collectively referred to as Marxism-Leninism.
Lenin played an important role in leading the October Revolution of 1917, which led to the overthrow of the Provisional Government and the founding of the Russian Socialist Federal Soviet Republic, the first socialist state in the world. Immediately afterwards, the new government under Lenin's leadership set out to introduce socialist reforms, including the transfer of noble and Crown lands to the workers. He supported the world revolution and the peace with the Central Powers, agreeing to a difficult Brest-Lithuanian peace that handed over significant parts of the former Russian Empire to Germany. Peace was annulled after the Allies won the war. In 1921, Lenin proposed the New Economic Policy, which began industrialization and reconstruction after the Civil War. In 1922, the RSFSR united with the former territories of the Russian Empire into the Soviet Union, and Lenin was elected its leader.