What Generalization Can Be Made About New England and the Middle

What generalization can be made about New England and the middle states and the enfranchisement of black men?

A) Because racism was strong in the North as well as the South, all of these states disenfranchised black voters.
B) All of these states allowed all black men to vote.
C) All of these states limited black men and women's voting in some way.
D) Generalizations are impossible: Some states forbid black voting, some continued to allow it, and some merely limited it in some way.