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': 'Cardiomyopathy is seen in all except - \nSelect and explain. \nA. Alkaptonuria, B. Type 2 glycogen storage disorder, C. Duchenne muscular dystrophy, D. Freidrich ataxia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: signs and symptoms of Alkaptonuria:valvular hea diseases mainly calcification regurgitation of the aoic and mitral valves, may occur, and in severe and progressive cases, valve replacement may be necessary. Irregularities in the hea rhythm and hea failure affect a significant propoion of people with alkaptonuria (40% and 10%, respectively). Hearing loss affects 40% of people. Also, a propensity to developing kidney stones exists, and eventually also gallstones and stones in the prostate and salivary glands (sialolithiasis) can occur. Ref Harrison 20th edition pg 1578', 'role': 'assistant'}]