The answer would be the second choice
he's well known as king tut
To the west of the Great Divide is the Green River watershed, draining to the Pacific Ocean and to the north is the North Platte watershed, draining to the Atlantic Ocean so the answer is they feed different watersheds.
The correct answer is reservations.
Reservations are pieces of land specifically designated for Native American citizens. After America was colonized, many Native Americans lost their land and homes, so America had to take care of them somehow. One solution was to give them land where they could leave peacefully, and that's how reservations came to be.
I'm pretty sure the answer is A. The first one.