What did the Sherman Antitrust Act make illegal in 1890?

Acorporations and rate discrimination
Bgovernment regulation and oversight
Ctrusts and monopolies
Dforeign trade and tariffs

Verified Answer :

The main thing that the Sherman Antitrust Act made illegal in 1890 was "c. trusts and monopolies," since these led to a dramatic decrease in competition in the US economy which greatly hurt the consumer. 

the answer is c i just took the test