Why did a labor crisis develop in the Cotton South in the first few decades of the 1800s?
a. Americans sent thousands of slaves to Africa, creating a shortage of slave labor.
b. Disease killed tens of thousands of slaves every year in the Deep South.
c. Patriot planters had gradually emancipated their slaves after the Revolutionary
War.
d. Planters heading west needed many new slaves to clear, plant, and harvest the
land.