Compare economies of the different regions of the united states in the mid-1800s. use details from the section to support your answer

In the mid-1800s, the country was divided into 3 sections: North, South, and West. The North's economy was dominated by manufacturing and industry. The South's economy was primarily agriculture with a heavy focus on growing cash crops like cotton, tobacco, rice, and indigo. The West's economy was a mixture of manufacturing and agriculture. The different economies would drive wedges between the different sections and result in different societies and values. 

Ithink the answer should be a.