Which of the Following Describes the Role of Cotton in the U.S

Which of the following describes the role of cotton in the U.S. market revolution?

A) Eli Whitney's invention of the cotton gin reduced the demand for slave labor.
B) The price paid for cotton plummeted and many cotton farmers went out of business.
C) Slavery expanded dramatically in the South.
D) Cotton shifted America's wealth to the South, creating a recession in the northern states.
E) Cotton production created new economic opportunities for poorer southern farmers.