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': 'Philtrum of upper tip is derived from \nSelect and explain. \nA. Maxillary prominence, B. Mandibular prominence, C. Medial nasal process, D. Lateral nasal process', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]