Scientists Continue to Debate the Relationship Between Two Homo Fossil

Scientists continue to debate the relationship between two Homo fossil finds: KNM-ER 1470,named H.rudolfensis by some,and KNM-ER 1813,generally considered to be an exemplar of H.habilis.Is the smaller KNM-ER 1813 a distinct species? Could it be a female version of KNM-ER 1470,both being simply a female and male pair of the highly variable H.habilis? The only sure conclusion is that

A) females are poorly represented in the hominin fossil record.
B) there is a trend in hominin evolution toward large molars.
C) no hominin fossil younger than 2.5 m.y.a. has exhibited chimplike features.
D) KNM-ER 1470 is more like an australopithecine than a Homo.
E) several different kinds of hominin lived in Africa before and after the advent of Homo.