What was one of the earliest attempts to put an end to trusts and monopolmies

I believe it was the Sherman Antitrust Act.

Hey Nava!

During Harrison presidency a law was passed to limit the power of trusts and monopolies. It was pursued by Theodore Roosevelt in the years 1900. While the Sherman Act was one of the earliest attempts to regulate monopolies it was not the first.

political parties are protected under 6th amendment.

the right answer is d) a conference committee. it is a temporary panel formed by house and senate members in order to reconcile differences in legislation.