This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anaesthesia Q Bank, Subject name: Anaesthesia
[{'content': 'Arrange following according to increasing order of their total body water as percentage of body weight 1. 6 month baby 2. neonate 3. young female 4. young male \nSelect and explain. \nA. 1<2<3<4, B. 1<3<4<2, C. 3<4<1<2, D. 4<3<2<1', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Age Total body water (%) ECF(%) Blood volume(%) Neonate 80 45 9 6 mo old 70 35 1 yr 60 28 5 yr 65 25 8 Young male 60 22 7 Young female 50 20 7 Elderly 50 20', 'role': 'assistant'}]