A. Foragers. The correct answer
At first we had nothing, then hunting. This eventually evolved into farming because it is easier.
Because the people who where farming where making the food, they controlled the population. This means that they started to give out specialized jobs to people to meet their needs. This cycle led to kings and queens then business.
Some people in the north thought of all the south as barbaric. Also he wanted only for a unified america to emerge. It was also bad for the south because a new civil war almost arose.