What Was the Key Issue in the Breakdown of Relations

Multiple Choice

What was the key issue in the breakdown of relations ​between China and the Soviet Union?

A) ​China believed that the Soviets had demonstrated socialist technological superiority and should to on the offensive.
B) ​Khrushchev argued that China had not reached an elevated state of Communism according to Marxist ideology.
C) ​Mao rebuked Khrushchev for his policy of de-Stalinization.
D) ​Mao felt that Khrushchev had disgraced Communism after the Cuban Missile Crisis.
E) ​Russia's increasing closeness with Castro and communist regimes in Latin America.