This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
[{'content': 'An asymptomatic 19-year-old female student presents for routine follow-up. On auscultation there is a murmur which on echocardiogram appears to be due to congenital mitral regurgitation. What might the physical findings include?Select the most typical clinical and auscultation findings for the above patient. \nSelect and explain. \nA. soft S1 and holosystolic murmur radiating from the apex to the axilla, B. early and midsystolic murmur, pulmonary edema, and elevated JVP, C. diminished S1 only, D. clear lungs and elevated JVP', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In chronic, compensated mitral regurgitation, there is a holosystolic murmur, which starts with SI and extends to or past the aortic component of S2. The SI is diminished, and there is increased splitting of S2. The murmur also radiates from the apex to the axilla. This condition is often tolerated for years before symptoms develop.', 'role': 'assistant'}]