This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Embryologically, forehead develops from: \nSelect and explain. \nA. Maxillary process, B. Mandibular process, C. Frontonasal process, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Frontonasal process forms the forehead, the nasal septum, philtrum of upper lip and premaxilla bearing upper four incisor teeth.\xa0\nMaxillary process forms whole of upper lip, except the philtrum and most of the hard and soft palate, except the part formed by the premaxilla. Mandibular process forms the whole lower lip.', 'role': 'assistant'}]