In general, the cranium of homo erectus has a high vertical forehead is composed of delicate, thin bone has no brow ridges is virtually identical to that of modern humans none of these

None of these is the correct answer.
The cranium of Homo erectus has a pentagonal shape when viewed from behind. The face of H.erectus was large with a low, forehead and a massive brow ridge. Skull was long with sharp angles at the rear, which is different than the skull in modern humans. Bones of the skull were very thick and formed a small central ridge called midline keel.

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