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': "Which of the following have most friable vegetation? \nSelect and explain. \nA. Infective endocarditis, B. Libman Sack's endocarditis, C. Rheumatic hea disease, D. SLE", 'role': 'user'}, {'content': "Answer: A \nExplanation: The vegetations seen in Infective endocarditis begin as small excrescences, mostly solitary which later enlarge and form bulky friable lesions posing greatest risk of systemic emboli.The vegetations seen in SLE (Libman Sack's endocarditis) and Rheumatic Hea disease are verrucous. Ref: Robbin's Basic Pathology, 7th Edition, Pages 380, 381, 134, 376.", 'role': 'assistant'}]