In the Wake of World War II, the U

In the wake of World War II, the U.S. economy did very well because

A) Keynesian economics stimulated a buyer's market.
B) reinvestment strategies coordinated the infrastructure with private contractors.
C) of massive economic aid from western Europe.
D) the infrastructure connecting the urban and rural areas was expanded with highways and railroads.
E) physical destruction of European manufacturing wiped out the competition.