As part of being readmitted to the Union, states had to ratify the new amendments to the Constitution. The Union did a lot to help the South during the Reconstruction. They rebuilt roads, got farms running again, and built schools for poor and black children. Eventually the economy in the South began to recover.
I'm not sure what the choices are as they're not provided. The importance of the victory at the Battle of Saratoga was a turning point as it showed that the United States could win against Great Britain. This eventually led to getting more allies such as France. France's help allowed the United States to gain more weapons and more equipment which proved to be very helpful as the war continued.
There was starting to be a conflict
ummm wut? im gonna gooooo.