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: Social & Preventive Medicine
[{'content': 'The re-evaluation of a case of acute flaccid paralysis for residual paralysis for the purpose of AFP surveillance is done after how many days \nSelect and explain. \nA. 60 days, B. 90 days, C. 6 months, D. 1 year', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. 60 days', 'role': 'assistant'}]