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': 'Among the following, T cell independent antigen acts through— \nSelect and explain. \nA. T cell, B. B cell, C. Macrophage, D. CD8+ cells', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]