Question

according to the key provisions of the sherman antitrust act, trusts and monopolies were:
illegal and could be broken up.
monitored closely by the government.
legal and could be established.
granted special treatment by the government.

Explanation:

The Sherman Antitrust Act was enacted to combat monopolistic practices. Its key provision was that trusts and monopolies, which restrained trade, were illegal and could be broken up. The other options are incorrect: the act was not about just monitoring (it was more about prohibiting), monopolies weren't legal to establish, and they didn't get special treatment.

Answer:

A. illegal and could be broken up