The federal government needed to regulate the settlement of western lands to
a)increase the number of slave states
b)secure the land for native americans
c)raise revenue to pay off its debts
d)prevent european nations from buying the land

C. Raise Revenue to pay off its debts

Explanation:

After the war, the colonies were in millions of dollars of debt with no way to pay it off. They started selling Native American land to pay their debts.

answer; i believe the correct answer is (favorable balance);

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.