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: Pathology
[{'content': "Papules are seen in all except: \nSelect and explain. \nA. Erythema multiformae, B. Sarcoidosis, C. Darrier's disease, D. Leukoplakia", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]