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': 'Which of the following is not an absolute contraindication for tooth extraction: \nSelect and explain. \nA. Central hemangioma., B. Acute infections., C. Arteriovenous malformation., D. Aneurysm.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In case of acute infections, extraction can be done under antibiotic coverage.', 'role': 'assistant'}]