单选题 The author mentions all of the following as evidence that dietary changes accompanied the expansion of Homo's brain EXCEPT

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