Joseph McCarthy, of Red Scare fame
The phrase or expression is meant to say that in order to receive the money you should get, you should do the job you are expected to do. Although the actual phrasing within the expression makes this a little difficult to understand this idea. In other words, you do the work, you get paid for the work you are expected to do.
James Monroe was the 5th president
Dont quote me on this but i believe the answer is c