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': 'A young female patient came for routine examinatio On examination a mid systolic click was found. There is no history of RHD. The histopathological examination is most likely to show- \nSelect and explain. \nA. Myxomatous degeneration and prolapsed of the mitral valve, B. Fibrinous deposition on the tip of papillary muscle, C. Rupture of chordae tendinae, D. Aschoff nodule on the mitral valve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]