First of all, I will be taking the side of doing none of those. Everything is good as it is, we should keep Black History Month and I don't think we need a White History Month as almost every month is that.
Why would we white's need a History Month, when we are the ones not being discriminated against? You have made no clear or relevant points as to why we need a White History Month. And we should not get rid of a Black History Month because they were the ones who were being discriminated against, and they were the ones who worked to get rid of the prejudice.
Slavery was over 200 years ago. You can't go to a black person and have them say that they have a grandparent still alive that was a slave, because it was over 8 generations ago. While WW2 that was about 50 years ago Jews are not recognized and they are white. You can that find a white person that is still alive was discriminated in the concentration camps. There was even white slaves from 200 years ago. Africans knew what they were going to do when they came to this country, they had to pay there way to America.