I think it's B as the answer
Answer:
The Southern economy was based primarily on cash crop agriculture, while the North had a diverse economy which included manufacturing, food staple farming and shipping.
Neolitihic revolution refers to the revolution that transform mankind's lifestyle from hunting/gathering into agricultural.
In an agricultural society, each member need to coordinate with one another in order to determine land's ownership and trading regulations.
Because of this, a mediator such as government is needed in order to make everything fair.
