The people
The United States constitution identifies all power as belonging to the people. It states that “We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution”
I think the correct answer from the choices listed above is option C. The ruling in Plessy v. Ferguson may have affected the legalities of segregation by redefining the concepts of "separate but equal". The segregation became a law in the United States. After this, Jim Crow laws were implemented that is meant to discriminate the African Americans.
There is a widely published cartoon from President Andrew Jackson’s time in office in which he is portrayed as a king and is labeled as “King Andrew the First.” The implication here is that he is acting more like a king than a president in a democracy