This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammation & Repair, Subject name: Pathology
[{'content': 'Pain during inflammation is mediated by \nSelect and explain. \nA. Nitric oxide, B. Leukotriene B4, C. Bradykinin, D. Chemokines', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Bradykinin(Ref: Robbins 9th/pg 65, 89)Functions of bradykinin:Increases vascular permeability, vasodilationSmooth muscle contraction and pain when injected into the skin.', 'role': 'assistant'}]