The researchers’ conclusion concerning the absence of demographic bias would be most seriously undermined if it were found that______
A.
the older as individual carnivore is, the more likely it is to have a large number of tooth fratures
B.
the average age at death of a present-day carnivores is greater than was the average age at death of a Pleistocene carnivore
C.
in Pleistocene carnivore species, older individuals consumed carcasses as thoroughly as idd younger individuals
D.
the methods used to determine animals’ ages in fossile samples tend to misidentify many older individuals as younger individuals
E.
data concerning the ages of fossil samples cannot provide reliable information about behavioral differences between extinct carnivores and present-day carnivores