This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'Oropharynx manifestation of HIV infection is - \nSelect and explain. \nA. Oral hairy leukoplakia, B. Caries tooth, C. Cheilitis, D. Paharyngitis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: repeat', 'role': 'assistant'}]