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: Medicine
[{'content': 'Richest source of Essential fatty acids \nSelect and explain. \nA. Safflower oil, B. Corn oil, C. Sunflower oil, D. Soyabean oil', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Safflower oil contains 73% linoleic acid.\xa0\nSunflower oil - 56%.\nCorn oil\xa0 - 57%.', 'role': 'assistant'}]