The Zygomatic is the cheek bone.
The Mandible is also known as the jaw bone. Chewing (mastication), involves the adduction and lateral motions of the jaw bone. It is the ONLY mobile bone of the facial skeleton.
The Vomer is a singular bone that runs vertically within the nasal cavity, separating the left and right sides.
The Maxilla is the upper jaw bone.
Your answer is B Mandible