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': 'RDA in infant of Vitamin A is – \nSelect and explain. \nA. 350 g, B. 450 g, C. 600 g, D. 1000 g', 'role': 'user'}, {'content': 'Answer: A \nExplanation: RDA of vitamin A in infants is 350 g or 1150 IU.', 'role': 'assistant'}]