Answer:
D
Explanation:
This case established the principle that when the U.S. government creates a reservation for a Native American tribe, the tribe also retains the rights to water necessary to fulfill the purpose of the reservation. This implied water right ensures that tribes have access to the water resources needed for their livelihood, sustenance, and economic development within their reservation boundaries. This decision has been significant in protecting tribal water rights and sovereignty, especially in the context of water allocation and disputes with non-tribal entities.