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
[{'content': "All are antigen presenting cells except - \nSelect and explain. \nA. T-cells, B. B-cells, C. Langerhan's cell, D. Dendritic cells", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., T cells", 'role': 'assistant'}]