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': 'What % of total calorie should be from Fat & EFA \nSelect and explain. \nA. 15-Jul, B. 65-80, C. 30-Oct, D. 7-Jan', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]