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: Surgery
[{'content': 'Water content in infant- \nSelect and explain. \nA. 60-70 %, B. 75-80 %, C. 80-90 %, D. > 90%', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Schwartz writes - "the highest percentage of Total Body Water is found in newborns, with approximately 80% of their total body weight comrpised of water. This decreases to about 65% by 1 year of age and therafter remains fairly constant through childhood".', 'role': 'assistant'}]