This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New Born Infants, Subject name: Pediatrics
[{'content': 'A new born can lose up to ______ % of birth weight in the first week of life: \nSelect and explain. \nA. 6-May, B. 10-Aug, C. 15-Dec, D. >15', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. 8-10Normally babies lose 8-10% of weight in the first week of life which is regained by 7-10 days of age. Subsequently there should be a gain of 20-40grams/day.This weight loss occurs due to excessive fluid loss.', 'role': 'assistant'}]