This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
[{'content': 'The attitude of the lower limb in post polio residual paralysis is- \nSelect and explain. \nA. Flexion, abduction, external rotation, B. Flexion, adduction, internal rotation, C. Extension, abduction, internal rotation, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Polio has iliotibial band contracture which shows FAbEr, not FAdIr', 'role': 'assistant'}]