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: Pharmacology
[{'content': 'Aspirin is used in treatment of Myocardial Infarction: \nSelect and explain. \nA. It inhibits thromboxanes, B. It stimulates ProstacycLins, C. It is a vasodilator, D. Ithelps in reducing inflammatory aggregate', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]