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: Pathology
[{'content': 'Cardiac condition requiring Antibiotic Prophylaxis for Infective Endocarditis? \nSelect and explain. \nA. Coronary Heart Disease, B. Rheumatic Heart Disease, C. Cardiac Pacemakers, D. Hypertensive Heart Disease', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]