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': 'Carbohydrate requirement in ideal balanced dict? \nSelect and explain. \nA. 10-20% of total energy intake, B. 20-30% of total energy intake, C. 40-50% of total energy intake, D. 50-70% of total energy intake', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., 50-70% of total energy intake", 'role': 'assistant'}]