Which of these is not related to prohibition?

Prohibition in the United States was a nationwide constitutional ban on the production, importation, transportation and sale of alcoholic beverages that remained in place from 1920 to 1933. It was promoted by the "dry" crusaders, a movement led by rural Protestants and social Progressives in the Prohibition, Democratic, and Republican parties. It gained a national grass roots base through the Woman's Christian Temperance Union.

I'm pretty sure that's called a volcano