What is the significance of the occipital condyles?

A)They articulate with the mandible, to allow for chewing movements.
B)They articulate with the zygomatic bone, to form a support structure for the cheek.
C)They articulate with the first cervical vertebra, to allow head movements with respect to the neck.
D)They provide a bony support structure for the pituitary gland.
E)They are passageways for the internal carotid arteries.