The answer is b correlation
After the war, there were two factions. Those who wanted to let them back if they voted to join back, and those who were radicalized and wanted to humiliate them while making them join the union again. Either way, reconstruction was on the way and a lot of politicians went south from the north to gain political power.
The square deal, so the answer would be A.
I believe it is B lmk if in wrong