This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
[{'content': 'The highest concentration of Vitamin A is seen in - \nSelect and explain. \nA. Polar bear liver, B. Cod luver oil, C. Shark liver oil, D. Papaya', 'role': 'user'}, {'content': "Answer: B \nExplanation: Cod liver oil contain 18000microgram per 100g.papaya contain only 118microgram.REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 615)", 'role': 'assistant'}]