This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Infective endocarditis is least likely to occur in \nSelect and explain. \nA. Aerial septal defect, B. Small ventricular septal defect, C. Mitral valve prolapse, D. Tetrology of hea', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref Harrison 19 th ed pg 816 Infection most commonly involves hea valves but may also occur on the low-pressure side of a ventricular septal defect, on mural endocardium damaged by aberrant jets of blood or foreign bodies, or on intracardiac devices themselves. The analogous process involving aeriovenous shunts, aerio-aerial shunts (patent ductus aeriosus), or a coarctation of the aoa is called infective endaeritis.', 'role': 'assistant'}]