Following World War II, the Soviet Union expanded its influence throughout eastern and central Europe.
What effect did the spread of communism have on American foreign policy activity?
A. It caused the United States to support the rearming of troops in central Europe
B. It caused the United States to form a military alliance with countries from Western Europe
C. It caused the United States to order the withdrawal of troops from all of Europe
D. It caused the United States to recall its ambassadors from countries in eastern Europe