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: Medicine
[{'content': 'A 26 yr old asymptomatic woman is found to have arhymias and a systolic murmur associated with midsystolic clicks; which investigation would you use: \nSelect and explain. \nA. Electrophysiological testing, B. Tc scan, C. Echocardiography, D. Angiography', 'role': 'user'}, {'content': "Answer: C \nExplanation: Answer is C (Echocardiography) The history suggests the diagnosis of 'Mitral valve prolapse'(MVP). Investigation of choice for MVP is Echocardiography.", 'role': 'assistant'}]