The misunderstanding of the role of doctors, particularly in the case of Dr. Marcus Whitman and the Native Americans, contributed to tensions that ultimately led to the Cayuse War. The correct response would be:
Native Americans did not want Dr. Whitman to practice medicine on their people.
This reflects the conflict between the cultural practices and beliefs of the Native Americans regarding healthcare and the intentions and methods of the Whitman mission, leading to significant misunderstandings and resentment.