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': 'Dose of Vitamin A (I.U) and Vitamin D (I.U) in Dalda is – \nSelect and explain. \nA. 1000 & 100, B. 1500 & 125, C. 2000 & 150, D. 2500 & 175', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]