What evidence about the skull made Geneva believe the skeleton was that of a black person?
A. Eye orbits tend to be sloped in people with European ancestry, rounded in American Indian descendants, and rectangular in groups from sub-Saharan Africa, and the orbits of the skeleton were a bit rectangular.
B. Nasal openings evolved high and narrow in Europeans, heart-shaped at the base in Native Americans, and wider in dark-skinned Africans, and the nose ridge on the skeleton was wider.
C. Black people's skulls are different from white people's skulls.
D. All of these are correct.