Question

the ratification of the eighteenth amendment established a national prohibition on

segregation in the armed forces of the united states.
segregation in public schools and government buildings.
the production, sale, and transportation of alcoholic beverages.
the placement of cigarette advertisements on television and radio.

Explanation:

The Eighteenth Amendment to the U.S. Constitution, ratified in 1919, enacted national Prohibition, which banned the production, sale, and transportation of alcoholic beverages in the United States. The other options relate to civil rights segregation and later tobacco advertising restrictions, which are unrelated to the 18th Amendment.

Answer:

the production, sale, and transportation of alcoholic beverages.