The sentence tht best explains how the historical description of subject matter enhances the meaning of the mythical description is C. It supports the myth by providing facts about how the Kiowas first named themselves with words that mean "coming out".
The author adopts the tone of a historian to explain the origins of the Kiowas, giving an explanation to the myth that has been passing from one generation to the next.
I BLIVE THE RIGHT ANSWER IS C
We can see it too in the attention paid to musical devices that are incorporated into the poem. Devices such as alliteration, assonance, and rhyme, for example.
Both answers are B i think
