【单选题】

The author mentions all of the following as evidence that dietary changes accompanied the expansion of Homo's brain EXCEPT
A．(A) the development of Homo's delicate jaws and smaller molars in response to environmental change

B．(B) the higher calorie density found in foods Hondo ate during the expansion, and their extra nutrients
C．(C) the fossil record of Homo, and what it indicates about Homo's progressive adaptation
D．(D) the fact Hondo was larger in terms of overall body size than its predecessors
E．(E) the development of a hunting-and-gathering economy beneficial to further brain growth