what were common jobs in the North before the Civil War? What was produced and sold in the north before the civil war? Please help, thanks!

Crops such as cotton, tobacco, rice, sugar cane and indigo were grown in great quantities. These crops were known as cash crops, ones that were raised to be sold or exported for a profit. They were raised on large farms, known as plantations, which were supported by slave labor.

answer; i believe the correct answer is prefrontal cortex;