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 of vitamin A in an adolescent female ? \nSelect and explain. \nA. 400 mcg, B. 350 mcg, C. 600 mcg, D. 800 mcg', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., 600 mcg", 'role': 'assistant'}]