The author most probably mentions the Chief White Antelope blanket in order to A. establish the credit influence of Anglo culture on the bordered style B. cast doubts on the claim that the bordered style arose primarily from Anglo influence C. cite an example of a blanket with a central design and no border D. suggest that the Anglo influence produced significant changes in the two earliest styles of Navajo weaving E. illustrate how the Navajo had exhausted the stylistic possibilities of the diamond style