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
[{'content': 'Most impoant inflammatory mediator? \nSelect and explain. \nA. TNF, B. IL-2, C. Interferon, D. PAF', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Tumour necrosis factor is the most impoant inflammatory mediator since it induce other cytokines as well Reff: Ananthanarayan & Panikers textbook of microbiology 9th edition pg: 155', 'role': 'assistant'}]