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: Dental
Cells which are absent in the junctional epithelium: 
Select and explain. 
A. Melanocytes, B. Langerhans cells, C. Merkel cells, D. None of the above.
B: Langerhans cells
Answer: B: Langerhans cells 
Explanation: None