During the Constitutional Convention, proposed the addition of a Bill of Rights to the Constitution itself, but his proposal was voted down because . A.
George Mason . . . the delegates thought it was unnecessary
B.
Thomas Jefferson . . . the delegates thought it would be redundant
C.
James Madison . . . the delegates thought state constitutions already protected rights
D.
Benjamin Franklin . . . the delegates believed the Constitution included individual rights

A. [ George Mason proposed the addition of a Bill of Rights to the Constitution itself, but his proposal was voted down because the delegates thought it was unnecessary. ]

Explanation:

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.