Question

Which of these was a DIRECT result of the failed slave revolt of Nat Turner in 1831?
A)
Southern legislatures reexamined the moral foundation of keeping millions of blacks as slaves.
B)
Congress passed a law that would phase out the importation of African slaves in the coming decade.
C)
Laws greatly restricting the legal rights of free blacks and slaves were passed throughout the South.
D)
President Lincoln dedicated the remainder of his presidency to eliminating slavery from the United States.

Answer 1

I think it's b

Answer 2

explain?