How did the emergence of the United States and the Soviet Union as
superpowers after World War II change the balance of power in world
politics?
A. It led to nationalist movements as the two states freed their
colonies.
B. It increased migration dramatically as people flocked to these two
states.
C. It forced many formerly communist nations to embrace
democratic reforms.
D. It led many other states to align themselves with one of the two
states.