Why does Boudinot include paragraphs 15-21 in his speech?

(A)to dispel the idea that the Cherokee Nation and other Native American communities are incapable of change.

(B)to convince the audience of the benefits in providing O financial support for the continued advancement of the Cherokee Nation.

(C)to compare the Cherokee's accomplishments to O those of other communities to gain access to the most funding.

(D)to warn the audience of the judgment they will incur O if they abandon the Cherokee Nation in their time of greatest need.