Cut off Eastern Europe from West

hola. and why do you hate your life: (? do you need someone to talk to? if so im here.: )

explanation:

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:

the answer is a) high entry costs