This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Antiplatelets and Fibrinolytics, Subject name: Pharmacology
[{'content': 'Thrombolytics can provide relative mortality reduction in the treatment of acute myocardial infarction, if patient comes within: \nSelect and explain. \nA. 6 hours, B. 12 hours, C. 18 hours, D. 24 hours', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (B) 12 hours(Ref: Harrison 18/e p2027)Thrombolytic drugs should be given within 12 hours after onset of acute MI and within 3 hours of acute strocke.', 'role': 'assistant'}]