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': "Oral hairy leukoplakia is seen in which of the following conditions? \nSelect and explain. \nA. AIDS, B. Hepatitis B, C. Smoker's keratitis, D. Candidiasis", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]