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: ENT
[{'content': "Apple jelly nodule in Nasal septum \nSelect and explain. \nA. Syphilis, B. Leprosy, C. Lupus vulgaris, D. Wegener's Granulomatosis", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]