The answer is: The reader gets a sense of the author’s feelings about the dogs that were a major part of Kiowa culture.
In the excerpt from "The Way to Rainy Mountain," the author Scott Momaday uses the first-person point of view to make readers understand and be aware of the narrator's feelings and motives. In other words, the first-person point of view makes the reader go inside the character's mind. As a result, they are able to learn the narrator's thoughts and see the events of the story through his or her eyes.
The rest of the alternatives are incorrect because the passage does not provide information about the role of dogs in the Kiowa culture.