This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
[{'content': 'Muscle of mastication are derived from \nSelect and explain. \nA. 1st arch, B. 2nd arch, C. 3rd arch, D. 4th arch', 'role': 'user'}, {'content': 'Answer: A \nExplanation: First pharyngeal arch is also called mandibular archMUSCLES-Temporalis, Lateral pterygoid, Medial pterygoid, Masseter, Mylohyoid, Anterior belly of digastric, Tensor tympani, Tensor palatiSKELETAL ELEMENTS-Premaxilla,maxilla,zygomatic,temporal,Meckel&;s cailageLIGAMENTS-Anterior ligament of malleus, sphenomandibular ligamentNERVE-Mandibular nerveAERY-Maxillary aery', 'role': 'assistant'}]