Khrushchev ordered the construction of the berlin wall to prevent people in communist Germany including highly trained workers and professionals from fleeing to an area of freedom behind the curtain.
Communist refers to the political and economic ideology for liberalizing democracy and capitalism that advocate for the classless system.
Khrushchev approved the construction of the berlin wall to stop East Germans from fleeing to capitalist West Germany.
Therefore, C is the correct option.
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