Based on the other answer, I'm guessing that it was A. Russians were likely to reject pure Marxism because Marx was a German. (I'll update it when I know for sure.)
Answer:
The legacy of the war would include the spread of communism from the Soviet Union into eastern Europe as well as its eventual triumph in China, and the global shift in power from Europe to two rival superpowers–the United States and the Soviet Union–that would soon face off against each other in the Cold War.
Explanation: