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': 'A child requires how much energy per day (Kcal/ day)? \nSelect and explain. \nA. 1000-1500, B. 1600-2000, C. 2000-2500, D. 2500-3000', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 1000-1500", 'role': 'assistant'}]