What Role Did Blacks Have in the Southern Governments Established

What role did blacks have in the southern governments established under congressional Reconstruction?

A) There were no black governors and only two black senators.
B) Blacks held most of the political offices.
C) Blacks formed a majority in most of the state legislatures.
D) Blacks rarely filled any important positions in state government.
E) Blacks dominated the ranks of the opposition Democratic party.