PLEASE PLEASE PLEASE HEEPPP what was one reason that the delegates to the constitutional convention debated how to control commerce with indigenous people?

a) economic treaties with indigenous peoples had seldom been made by the centeral government.
b) indigenous peoples had been unwilling to make economic treaties with the central government.
c) it had been unclear whether the cental government or the states should manage economic treaties.
d) both the state and central governments believed that economic treaties should be revised