The correct answer is: B. land around the river was fertile and capable of supporting farming.
Flood plains often have incredibly rich soil and the "Fertile Crescent" is a classic example of the benefits of flood plains leading towards bountiful farming.
I think it’s Tax Revenues
The us government viewed its treaties with the native poorly we kept making treaties and then we broke them then we made more the we broke those too so the u.s government treated the treaties and the natives very poorly
hope this helps
