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': 'Which of the following T cell independent Antigen acts through - \nSelect and explain. \nA. T-cell, B. B-cell, C. Macrophages, D. CD8+ T cells', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., B-cells T-cell independent antigens directly stimulates B-cells without processing by antigen presenting cells.", 'role': 'assistant'}]