The economy of which colonial region(s) depended heavily on slave labor? A.
the Middle Colonies
B.
the South
C. New England
D.
New England and the Middle Colonies

The South

Explanation:

The South depended on the slave labor because of the large plantations in places like Georgia, compared to the unfertile land of the North.

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;