Why was the Sherman Antitrust Act of 1890 created?

A: to break up monopolies and trusts that had come to dominate entire industries toward the end of the 1800s.

B: to discourage unions and management from placing too much trust in the promises they made to each other.

C: to break up increasingly powerful national unions that were forming toward the end of the 1800s.

D: to legalize yellow dog contracts.