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': "This sign is seen in all the following disorders EXCEPT? \nSelect and explain. \nA. Duchenne muscular dystrophy, B. Becker's muscular dystrophy, C. Landouzy-Dejerine disease, D. Spinal muscular atrophy", 'role': 'user'}, {'content': "Answer: D \nExplanation: d. Spinal muscular atrophyThe given picture shows a child using his upper limb to help him get up from sitting position; This is called 'Gower sign'", 'role': 'assistant'}]