This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
Interleukin I primarily acts on - 
Select and explain. 
A. T-lymphocytes, B. B-lymphocytes, C. Neutrophils, D. Macrophages
A: T-lymphocytes
Answer: A: T-lymphocytes 
Explanation: The immunological effect of IL1 include stimulation of T cells for the production of IL2 and other lymphokines REF:Ananthanarayan & Panikers textbook of Microbiology 9th Edition pg:154