Mainly because of racism and sexism.
B. It supports the myth by providing real facts about the custom of antelope hunting by the Kiowas.
Immediately options C and D should be eliminated. In the excerpt there is no mention of teepees or winter so these are not valid answers. This leaves option A and B. The difference between the two is that Option A says the description is from a personal point of view. A personal point of view should be written in first person with the pronouns I, me, my. The excerpt is written from third person point of view so it is not option A.
B.) by identifying the topic, medium, and supporting sentences
I hope this helps! Good luck in your studies!
I believe its c. adjective phrase Because "of a landscape" describes what kind of picture is to be drawn. And Adjectives describe.