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: Pathology
[{'content': 'The anti-inflammatory mediator is? \nSelect and explain. \nA. Interleukin 4, B. Interleukin 1, C. Interleukin 6, D. TNF- Alpha', 'role': 'user'}, {'content': 'Answer: A \nExplanation: IL-4 has mainly anti-inflammatory property with some proinflammatory action. Proinflammatory cytokines\ni) Major:- IL-1, TNF- alpha, IL-6\nii) Other:- IL-2, IL-4, IL-5, IL-6, IL-8, IL-11, IL-12, IL-15, IL-21, IL-23, IFN-gamma, GM-CSF\xa0\nAnti-inflammatory cytokines\ni) IL-4, IL-10, IL-13, and transforming growth factor β (TGF-β)', 'role': 'assistant'}]