Which outcome resulted from the period of prohibition in the United States?

A: An increase in the size and power of organized crime operations

B: A period of widespread popularity for the communist movement

C: A decrease in the loyalty of children to their parents' political values

D: An expansion of restrictions on immigration from outside western Europe

your answer is A. swoosh.

The answer is : A) An Increase in the size and power of organized crime operations

This is because prohibition led to the growth of the illegal sale of alcohol, which in turn made a lot of black market and underground salesmen earn an immense amount of wealth and power.

This resulted in the creation of gangs and organized crime, all in the benefit from profiting from the illegal sale of alcohol.