This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Orthopaedics
[{'content': 'In 3 year child with polio paralysis, tendon transfer operation is done at \nSelect and explain. \nA. 2 months after the disease, B. 2 years after the disease, C. 6-12 months after the disease, D. After skeleton maturation', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans is 'b' i.e. after 2 years Tendon transfers: are done to equalize an unbalanced paralysis or to use the motor power of working muscles for more useful functions. It is not done before 5 yrs of age as the child has to be manageable enough to be taught proper exercises.", 'role': 'assistant'}]