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: Pediatrics
[{'content': 'Regarding polio which is true \nSelect and explain. \nA. Most of the cases are symptomatic, B. Spastic paralysis is seen, C. IM injections and increased muscular activity increases the risk of paralytic polio, D. Pulse polio immunization is indicated in all children less than 3 years of age', 'role': 'user'}, {'content': 'Answer: C \nExplanation: IM injections and increased muscular activity increases the risk of paralytic polio Repeat, from May 2008', 'role': 'assistant'}]