What was the greatest problem facing the united states in 1790?

a) disputes between the federalist and the anti-federalists
b) the national debt
c) conflicts with native americans
d) the war in europe

C) Conflicts with Native Americans

Explanation:

During the 1790, Native Americans were coerced to move to west during the trail of tears, By the coming years the white settlers now wants land in the west as well, after this government decided to take the native American's land and send them to reservations, this was done purposely to make land for the settlement and break the power of the Natives.

answer; /// all of the above;