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
Which of the following is not immunohistochemistry marker of Langerhans cell histiocytosis? 
Select and explain. 
A. S-100, B. CD1a, C. CD207, D. None of the above
D: None of the above
Answer: D: None of the above 
Explanation: CD1a, S-100, CD 207 (Langerin) all are immunohistochemistry markers of Langerhans cell histiocytosis.