Which statement is true about the religious beliefs of Northwest Coast Indians and Plateau Indians?

Northwest Coast Indians believed that the tribal chief was the link to the spirit world, while Plateau Indians believed that the shaman was.

The beliefs of Northwest Coast Indians came from written documents, while the beliefs of Plateau Indians came from ideas passed down in stories.

Northwest Coast Indians and Plateau Indians had similar religious beliefs.

Northwest Coast Indians and Plateau Indians had very different religious beliefs.