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: Biochemistry
[{'content': 'Recommended dietary allowance of vitamin A for adults is \nSelect and explain. \nA. 3500 IU for man and 2500 IU for woman, B. 3000 IU for man and 2000 IU for woman, C. 4000 IU for man and 3000 IU for woman, D. 4500 IU for man and 3500 IU for woman', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The RDA of\xa0vitamin A\xa0for adults is around 1000 retinol equivalents (3,500 lU) for man and 800 retinol equivalents (2,500 lU) for woman.\nReference: Satyanarayana- Biochemistry, 3rd edition, pg-122', 'role': 'assistant'}]