Answer:
Correct answer is Stalin.
Step-by-step explanation:
Stalin's regime was totalitarian and sometimes he would bring decision that were opposing the basic rights of its citizens. Many Soviet citizens were transferred to Siberia, where a lot of them were imprisoned, while some ethnic groups, such as Greeks and Koreans were removed and deported.
Gorbachev was the last leader of Soviet Union and had totally different policy than Stalin.
Khrushchev was direct successor of Stalin, who tried to make a total change in contrast to Stalin's regime.
Eisenhower was American general in WW2 and president after the war.