This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Newborn loses how much weight in first week ? \nSelect and explain. \nA. 5-10%, B. 1-2%, C. 10-20%, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: O.P.Ghai 9th edition - page 13', 'role': 'assistant'}]