How did cotton production contribute to divisions in the United States leading up to the Civil War?
a Slave labor was needed to make cotton profitable, and slavery was a divisive issue at the time.
b The majority of the nation's income was from cotton production, and the South wanted a greater share of the economic benefit.
c Cotton imports were banned in Europe because of slavery, and the North especially needed that income.
d The cotton crop could not be processed in the South, and the North wanted a greater share of the economic benefit for processing it.