After World War II ended, which of these regions was impacted by a communist revolution?

A. Country D
O B. Country A
C. Country C
D. Country B

D

Explanation:

"The aftermath of World War II was the beginning of a new era for all countries involved, defined by the decline of all European colonial empires and simultaneous rise of two superpowers: the Soviet Union (USSR) and the United States (US). Allies during World War II, the US and the USSR became competitors on the world stage and engaged in the Cold War, so called because it never resulted in overt, declared total war between the two powers but was instead characterized by espionage, political subversion and proxy wars."

"The aftermath of World War II also saw the rise of communist influence in Southeast Asia, with the People's Republic of China, as the Chinese Communist Party emerged victorious from the Chinese Civil War in 1949."

https://en.wikipedia.org/wiki/Aftermath_of_World_War_II

the answer would be a i think?