During the depression the u. s, congress passed real advertising reform, including law against "deceptive acts of commerce." the result was

legal injunctions set by courts prohibiting advertisers to continue to make false claims.

Explanation:

Before the Great Depression, advertising was highly respected and the general public trusted them a lot, but after the Great Depression the general public started to distrust advertising since they find out that many advertisers used false claims.

answer; only identify and interpret trends in the marketplace;