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
The high level clear cell present in the oral epithelium is: 
Select and explain. 
A. Melanocyte, B. Lymphocyte, C. Merkel cell, D. Langerhans cells
D: Langerhans cells
Answer: D: Langerhans cells 
Explanation: None