Which progressive reform allowed the voters to approve or reject laws passed by the legislature

The referendum is the progressive reform that allowed the voters to approve or reject laws passed by the legislature.

To add, a referendum (plural referendums, see below) is a direct vote in which an entire electorate is asked to vote on a particular proposal.

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.