Archaeological Evidence That Offers Clues to the Origins of Human

Archaeological evidence that offers clues to the origins of human language includes the

A) fossilized brain casts of Neanderthals that show the anatomical features for speech.
B) existence of the FOXP2 gene,which is also found in chimpanzees.
C) careful study of nonhuman primate sounds and gestures.
D) discovery of fossilized human remains that are almost 2.5 million years old.