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
IL-I is produced by 
Select and explain. 
A. Macrophage, B. Helper T lymphocytes, C. B cells, D. Cytotoxic T-cells
A: Macrophage
Answer: A: Macrophage 
Explanation: Ans. (a) Macrophage Ref. Ananthanarayan 8/e, p 148, 9/e, p 154; Robbin's 7/e, p 82 Already explained in answer no. 5