Answer:
E. the rising value of slaves made it profitable for slaveowners to take better care of them.
The economic and social conditions in the American South, including the profitability of cotton and the industrialization of the North, led to a significant increase in the value of slaves. Slave owners had an incentive to invest in the health and productivity of their slaves to maximize profits. This, combined with the influence of Protestantism which emphasized the equality of all people in the eyes of God, contributed to comparatively better conditions for Southern slaves than those in the Caribbean and South America.