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: Medicine
[{'content': 'MHC class II antigens are located on which of the following cells: \nSelect and explain. \nA. Platelets, B. Dendritic cell, C. RBC, D. T-cell', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Dendritic cells', 'role': 'assistant'}]