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: Microbiology
LANGHERHAN CELL in skin are 
Select and explain. 
A. antigen presenting cell, B. pigment producing cell, C. keratin synthesisng cell, D. sensory neurons
A: antigen presenting cell
Answer: A: antigen presenting cell 
Explanation: Langerhans cells are dendritic cells (antigen-presenting immune cells) of the skin and mucosa, and contain large granules called Birbeck granules. They are present in all layers of the epidermis, but are most prominent in the stratum spinosum.]They also occur in the papillary dermis, particularly around blood vessels,] as well as in the mucosa of the mouth, foreskin, and vagina.