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: Pediatrics
[{'content': 'Which of the following is not immunohistochemistry marker of Langerhans cell histiocytosis? \nSelect and explain. \nA. S-100, B. CD1a, C. CD207, D. None of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: CD1a, S-100, CD 207 (Langerin) all are immunohistochemistry markers of Langerhans cell histiocytosis.', 'role': 'assistant'}]