Why did Congress pass the Volstead Act to go along with the Eighteenth Amendment?

The Eighteenth Amendment established Prohibition by banning the manufacture, sale, and transportation of intoxicating liquors, but it needed laws explaining how the ban would be enforced. The Volstead Act supplied those enforcement rules, so the correct choice is “The Volstead Act provided for the enforcement of the Eighteenth Amendment.” It did not prohibit drinking itself.

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