Answer:
The right answer here is A. Killed dissidents.
Step-by-step explanation:
Joseph Stalin achieved absolute power in the Soviet Union. He eliminated rivals in the party inner circles or made them escape into exile - such was the case of Leon Trotsky. He also pursued, jailed or killed dissidents; he forced the collectivization of land in Russia and Ukraine, ordering to kill any peasant opposed to giving up land - millions died in the collectivization process in the USSR in the 1920s-1930s-. Stalin ordered purges within the party and the military of people who were often innocent, guided by his paranoia. He concentrated top decision power within the party, and made Soviet propagandists depict him as a good leader who cared about the ordinary Soviet people and as a great Marxist thinker.