Eli Whitney invented the cotton gin in 1793. The cotton gin is a machine that makes it easier to harvest cotton quickly. What happened to the overall supply of cotton after 1793?
A: The supply went up.
B: The supply went down.
The cotton gin was a new technology that made it possible to harvest cotton much faster than before. Cotton growers were able to produce much more cotton in the same amount of time. So, the supply of cotton went up.