The Five Tribes’ objections to the claims of US commissioners at Fort Smith included all of the following except . A. that many tribal members had fought on the side of the Union during the war
B. that the Confederacy had promised to protect tribal lands from white settlement in exchange for the Five Tribes' loyalty
C. that the Union had abandoned the Indian Territory during the Civil War
D. that the Five Tribes were sovereign nations and could make treaties with whomever they wished