A Key Function of the Bill of Rights Is To

A key function of the Bill of Rights is to: 

A)  protect the rights of the government. 
B)  consider the will of the majority when making amendments to the Constitution. 
C)  protect the rights of those in the minority against the will of the majority. 
D)  guide the states on how to run the government. 
E)  allow the Supreme Court to have the final say on how the Constitution should be interpreted.