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
Which of the following T cell independent Antigen acts through - 
Select and explain. 
A. T-cell, B. B-cell, C. Macrophages, D. CD8+ T cells
B: B-cell
Answer: B: B-cell 
Explanation: Ans. is 'b' i.e., B-cells T-cell independent antigens directly stimulates B-cells without processing by antigen presenting cells.