What was the primary goal of u. s. foreign policy after 1946?
a. promote the spread of nationalism
b. prevent the spread of communism
c. encourage the expansion of human rights protections
d. construct a coalition of countries to topple cuba

The primary goal of the United states foreign policy after 1946 was to prevent the spread of communism. The correct option among all the options that are given in the question is option "b" or the second option. This kind of foreign policy started the Cold war between the two super powers USSR and America. 

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