Why was the iron curtain a problem?

a.) it prevented the allies from knowing what the soviets were up to.
b.) the soviets were participating in the cold war.
c.) it blockaded access to berlin.
d.) it separated north and south korea

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for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation: