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': 'Highest amount of vitamin D content among the following is seen in: \nSelect and explain. \nA. Egg, B. milk, C. butter, D. cod liver oil', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Dietary sources of vitamin D: DISINFECTANT Mg/100 g Egg 1.25-1.5 butterl 10.5-1.5 Milk 0.1 Cod liver oil 200-750 Halibut liver oil 500-10,000 Ref: Park 22nd edition, page 572', 'role': 'assistant'}]