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': 'Posterior Midline Atrophic Candidiasis is: \nSelect and explain. \nA. Migratory glossitis., B. Median rhomboid glossitis., C. Hairy tongue., D. None.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]