This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
[{'content': 'Which one of following is typically associated with this finding? \nSelect and explain. \nA. Bulimia, B. Recent endotracheal intubation, C. Acquired immunodeficiency syndrome, D. Treatment with a sulfonylurea', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Answer D. Candida albicans infectionBlack hairy tongue (lingua villosa nigra) may be associated with the presence of chromogenic organisms (e.g., C. albicans) and the use of certain medications (e.g., doxycycline and bismuth). The pathophysiology is thought to be due to proliferation of the filiform papillae of the tongue, which stain black with porphyrin-producing chromogenic bacteria or yeast.', 'role': 'assistant'}]