This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Identification, Subject name: Forensic Medicine
[{'content': 'Method of identification using lips? \nSelect and explain. \nA. Dactylography, B. Podogram, C. Cheiloscopy, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Repeat question.', 'role': 'assistant'}]