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': 'True about thromboxane-A2 is? \nSelect and explain. \nA. Vasodilatation, B. Platelet aggregation, C. Potentiation of edema, D. Formed in endothelium', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Platelet aggregation", 'role': 'assistant'}]