Which product advertisement did American radio stations most likely not broadcast in the 1920s?

Question

Quizplus · Accepted Answer

During the 1920s, Prohibition was in effect in the United States, making the production, importation, transportation, and sale of alcoholic beverages illegal. As a result, advertising beer on the radio would have been against the law, making it highly unlikely for American radio stations to broadcast such advertisements.

Which Product Advertisement Did American Radio Stations Most Likely Not