Dubois's Pithecanthropus Erectus Finds Consisted of

Dubois's Pithecanthropus erectus finds consisted of

A) only skull fragments, so it was not known if Pithecanthropus erectus was bipedal.
B) only leg and other body fragments, so it was not known if Pithecanthropus erectus had a human-size brain.
C) a molar, a partial skull, and a femur, which indicated that Pithecanthropus erectus walked only partially upright, but had a human-size brain.
D) a molar, a partial skull, and a femur, which indicated that Pithecanthropus erectus walked much like a modern human but had a brain intermediate in size between a modern human and a typical nonhuman ape.