Which of the Following Issues Led to the Cold War

Multiple Choice

Which of the following issues led to the Cold War between the United States and the Soviet Union?

A) Their expanding overseas empires impinged on one another, creating borderland conflicts.
B) They had diametrically opposed political and economic ideologies.
C) They had been on opposing sides during World War I and II.
D) They both wanted to colonize western Europe's former colonies.