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 these is TRUE regarding Libman sach's lesion - \nSelect and explain. \nA. Causes perforation of valves, B. Involves mulitple valves, C. Consists of large vegetation, D. Vegetations on the surface of valve spreads to mural endocardium", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]