This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunity, Subject name: Pathology
Most potent antigen presenting cell is? 
Select and explain. 
A. B cells, B. Dendritic cells, C. T cells, D. NK cells
B: Dendritic cells
Answer: B: Dendritic cells 
Explanation: Ans. is 'b' i.e., Dendritic cells * Important antigen presenting cells are macrophages, B-cells, dendritic cells and Langherhans cell, Dendritic cells are the most potent and effective antigen presenting cells.* Dendritic cells are the most potent and effective antigen presenting cells.