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': 'Id reaction is associated with \nSelect and explain. \nA. apthous ulcer, B. herpetic stomatitis, C. syphilis, D. candidiasis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]