How did Eli Whitney's invention of the cotton gin impact slavery in the Southern states?

A. It took more slaves to operate the cotton gin

B. Its slow down the rate of cotton production in the United States

C. It increased the slave population in the United States

D. It decreased the slave population in the United States

Francine, a college freshman, has agreed to participate in a psychology research study. before she begins her participation, she reads a statement written by the researcher explaining the purpose of the research and the potential risks of participation. it also explains that francine is free to withdraw from the research at any time. in providing francine with this statement, the researcher has followed the ethical guidelines of for participants.