This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Anatomy
[{'content': 'Water content in infant - \nSelect and explain. \nA. 60-70%, B. 75-80%, C. 50-60%, D. 80-90%', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 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'}]