Which act of congress gave president roosevelt the authority that he demonstrates in this cartoon?
(1)meat inspection act
(2)sherman antitrust act
(3)underwood tariff act
(4)pure food and drug act

Even though the cartoon isn't shown, the act of Congress that gave President Roosevelt the authority that he demonstrated in a cartoon is the Sherman Antitrust Act. This law was passed by the Congress in 1890. The law is also known as the "competition law." This law protects consumers from monopolies, trusts, and cartels. 

The answer is a price setter because they are the ones they add on the price.