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: Unknown
[{'content': 'chelioscopy is the study of - \nSelect and explain. \nA. Foot prints, B. Palatal prints, C. Finger prints, D. Lip prints', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Lip prints', 'role': 'assistant'}]