Your classmate, whose part-time job entails reorganizing the paleoanthropology lab on campus, asks you to take a look at a skeleton that she thinks is that of a primate.
After noting the absence of a postorbital bar, nails, and an opposable thumb, what would be a valid statement to make?

a) The skeleton is that of an Old World monkey.
b) She should label this skeleton a plesiadapiform rather thana primate.
c) The skull is probably that of an Eocene euprimate.
d) There is no way that the skull and the hands are from the same animal.