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': 'The antibiotic cover is mandatory before extraction in the following condition of the heart: \nSelect and explain. \nA. Ischemic heart disease (IHD), B. Hypertension, C. Congestive cardiac failure, D. Congenital heart disease', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]