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
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 
Select and explain. 
A. 60 days, B. 90 days, C. 6 months, D. 1 year
A: 60 days
Answer: A: 60 days 
Explanation: Ans. a. 60 days