This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Musculo Skeletal Disorders, Subject name: Pediatrics
[{'content': "About Duchenne muscular dystrophy-false statement is: \nSelect and explain. \nA. Becker's dystrophy more severe, B. X-linked recessive, C. Cardiomyopathy, D. Mental retardation common", 'role': 'user'}, {'content': "Answer: A \nExplanation: a. Becker's dystrophy more severe(Ref: Nelson's 20/e p 2915-2985, Ghai 8/e p 595-597)Becker's dystrophy is a less severe variant of Duchenne muscular dystrophy.", 'role': 'assistant'}]