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
Langerhan's cells are - 
Select and explain. 
A. Phagocytic cells, B. Antigen presenting cells, C. Seen in auto immune conditions, D. Seen in chronic infection
B: Antigen presenting cells
Answer: B: Antigen presenting cells 
Explanation: Ans. is 'b' i.e., Antigen presenting cells Langerhans cells are dendritic cells They acts as antigen presenting cells.