This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pathology
[{'content': 'In which of the following vegetation are friable and easily detachable from the cardiac valves \nSelect and explain. \nA. Rheumatic fever, B. Rheumatoid hea, C. SLE, D. Infective endocarditis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Infective endocarditis is a serious infection mandating promt diagnosis and intervention. Microbial invasion of hea valves or mural endocardium often with destruction of the underlying cardiac tissue characteristically results in bulky , friable vegetation composed of necrotic debris, thrombus, and organisms. The aoa , aneurysmal sacs , other blood vessels and prosthetic devices also can be affected. Robbins 9 th edition page no. 393', 'role': 'assistant'}]