Department of Agriculture
The 1920s was a decade of lots social changes. The most obvious signals of change were the rise of a consumer-oriented economy and of mass entertainment, which helped to bring about a "revolution in morals and manners." Sexual mores, gender roles, hair styles, and dress all changed profoundly during the 1920s.
A trade that involves more than one state, and that is, under the constitution, a proper subject of federal law
Answer is B
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