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 recommended daily requirement of vitamin A for pregnant woman is - \nSelect and explain. \nA. 750 mcg, B. 900 mcg, C. 1200 mcg, D. 1500 mg', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref: Park 25th edition Pgno : 654', 'role': 'assistant'}]