This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitamin A, Subject name: Pediatrics
[{'content': 'Which is a rich source of vitamin A - \nSelect and explain. \nA. Cod liver oil, B. Coriander, C. Egg, D. Milk', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Cod liver oil Retinol content of selected foodsRetinol equivalents (RE) (mcg/100 g)Halibut liver oil900,000Carrot1167Cod liver oil18,000Spinach607Liver, Ox16,500Amaranth515Butter825Green leaves300Margarine900Mango, ripe313Cheese650Papaya118Egg140Orange25Milk, Cow38Tomato84Fish40", 'role': 'assistant'}]