After the Second World War, Why Did American Planners Seek

After the Second World War, why did American planners seek a world economy based on free trade and the speedy reconstruction of Germany, Japan, and other nations?

A) They believed these policies would allow the United States to aid the impoverished masses in the newly emerging nation states.
B) They believed these policies would give the United States the military prowess it needed to overthrow the Soviet government.
C) They believed these policies would help enhance the prestige of the United States-backed United Nations.
D) They believed that both the economic well-being and the security of the United States depended on these policies.