Name of the confederated tribes of the colville reservation washington

The Colville, the Nespelem, the Sanpoil, the Lake, the Palus, the Wenatchi, the Chelan, the Entiat, the Methow, the southern Okanagan, the Sinkiuse-Columbia, and the Nez Perce

Explanation:

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

it's lower nubia : ) good luck