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 interleukin is called multi - CSF \nSelect and explain. \nA. IL - 1, B. IL - 2, C. IL - 3, D. IL - 6', 'role': 'user'}, {'content': 'Answer: C \nExplanation: IL - 3 acts as multi - CSF.', 'role': 'assistant'}]