What lesson did many white southerners take from Nat Turner's rebellion? Teaching Christianity to blacks led to rebellion. Southerners needed to treat their slaves better. Slaves should be kept illiterate. Slaves must not be allowed to leave the plantations.

D) Slaves must not be allowed to leave plantations. I don't believe many, if any at all, Southerners taught their slaves Christianity. I think some slave owners actually treated their slaves worse after Nat Turner. And most of those slaves were fairly illiterate to begin with.