Joseph Stalin Eagerly Desired Communist Revolutions in Western Europe, but He

Joseph Stalin eagerly desired Communist revolutions in Western Europe, but he was willing to wait because he and Lenin believed that

A) the West would voluntarily embrace communism.
B) the East wind would triumph over the West wind.
C) communism must first come to China.
D) imperialism would last until the 21^st century before it would collapse.
E) revolutions come in waves.