Sub-Saharan African societies are similar to Latin American Indian societies in that both
(A) built classical civilizations without cultural diffusion from other civilizations.
(B) developed in mountainous environments.
(C) originated complex mathematics and scientific traditions.
(D) had numerous similarities making it impossible to generalize about them.
(E) were devastated by contacts with Europeans and Arabs, which led to mass epidemics and the death of whole indigenous populations.
Answer: D