Found in caves with the bones of australopithecines, which are thought by some to be ancient ancestors of the human species, were great collections of animal bones. From the frequencies of types of bones, it can be seen that many bones represented only parts of animals that must have died elsewhere. The australopithecines thus must have been mighty hunters, to have brought home so much meat.
Which of the following, if true, most seriously weakens the conclusion drawn above
A．The australopithecines sometimes moved from cave to cave for shelter and did not remain in one cave for a lifetime.
B．The australopithecine bones found in the caves were those of adult males, adult females, and juveniles.
C．Evidence of the use of fire was absent from the caves in which the collections of bones were found.
D．Marks on the bones, including the bones of the australopithecines, are consistent with teeth marks of large catlike animals of the period.
E．(E) The bones in the cave did not include bones of an elephantlike animal that existed in the area at the time of the australopithecines.
