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
[{'content': 'EAC rosettes are formed by \nSelect and explain. \nA. B-cells, B. T-cells, C. Dendritic cells, D. Osteoclasts', 'role': 'user'}, {'content': 'Answer: A \nExplanation: EAC rosettes are formed by B-cells.', 'role': 'assistant'}]