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: Surgery
[{'content': 'Elective dental extractions on a patient who has had a myocardial infarct two months prior are best: \nSelect and explain. \nA. Performed under oral valcum sedation, B. Performed using an epinephrine free local anesthetic, C. Performed using both of the above, D. Postponed until at least six months have elapsed', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]