How did the election of ulysses s. grant affect the voting rights of african americans?

a. grant received fewer votes in the north, so the civil rights act of 1866 was enacted to protect african american rights.
b. grant received fewer votes in the north, so the fifteenth amendment was passed to allow male african americans the vote.
c. grant received fewer votes in the south, so the civil rights act of 1866 was enacted to protect african american rights.
d. grant received fewer votes in the south, so the fifteenth amendment was passed to enfranchise all african americans.