This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
Under the National Polio Eradication Programme, a case of Acute Flaccid Paralysis is confirmed as Polio, under the following circumtances except - 
Select and explain. 
A. If a case is lost to follow up, B. If a case could not be confirmed because the patient died before that, C. If a wild strain of polio virus is isolated from stool, D. If a patient develops paralysis 30 days after diagnosis of AFP
D: If a patient develops paralysis 30 days after diagnosis of AFP
Answer: D: If a patient develops paralysis 30 days after diagnosis of AFP 
Explanation: If a patient develops paralysis 30 days after diagnosis of AFP is not considered as AFP. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 21ST EDITION. PAGE NO - 188,189