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: Skin
[{'content': 'Single lesion in skin is seen in which type of leprosy: \nSelect and explain. \nA. TT, B. BT, C. BL, D. LL', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. TT', 'role': 'assistant'}]