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': 'Leprosy do not involve: \nSelect and explain. \nA. CNS, B. Testis, C. Skin, D. Cornea', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. CNS', 'role': 'assistant'}]