Answer:
D. A belief that one nations fall to Communism would lead to others
Explanation:
I believe the answer is Art and intellectual activity flourished in europe
Renaissance is regarded by historians as a turning point from the middle ages to the modern society.
During this time period, many people started to manifest their intellectual capacity into science, art, and literature and led to several inventions that were crucial to move the society forward.
Higher level party leaders (Hitler) which he was a dictator but still he had the all control over that area