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': 'Nocturnal enuresis may be considered normal upto:March 2005 \nSelect and explain. \nA. 3 years, B. 4 years, C. 5 years, D. 6 years', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D: 6 yearsNocturnal enuresis is normal upto 6 years while its normal upto the age of 4 years for daytime.', 'role': 'assistant'}]