I would say B. because thats where u learn more stuff and education is the key to life!
The expansion of cotton production greatly increased the demand for slavery in the United States, since the massive amounts of cotton that were being grown in the fields needed to be picked, which required more and more slave labor. This was also incredibly hard and "back-breaking" work, which made life even harder for the slave population.
Civil War
Natural resources
Growing workforce
Technology/ innovation
Government policies
