The selection of senators by state legislatures was intended to serve as a check on which of the following?

mob rule

Explanation:

Defining mob rule implies the state of large numbers of people acting without the approval of government, authority, etc. The only constitutional amendment to make changes in the structure of Congress in the constitution is the Seventeenth amendment which withdrew the right to select the Senators of the U.S. from state legislatures and offered that power directly to voting public. Therefore implementing this amendment checks on the mob rule.

it the big letter b heart my answer

b. the passage of the equal rights amendment  

explanation:

this mean that anything that someone else could do they could do