This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Assessment of Growth, Subject name: Pediatrics
[{'content': 'When ICF and ECF of child become to adult person - \nSelect and explain. \nA. 1 year, B. 2 year, C. 3 year, D. 4 year', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 1 year o Fetus has very high TBW (Total body water) and gradually decrease to approx 75% of BW for term infant,o Preterm infant have higher TBW.o During ist year of life, TBW decrease to approx 60% of body (Equal to adult).o TBW is divided b/w 2 main compartment ICF & ECF. In future ECF is larger then ICF.o By age of 1 year ratio of ICF volume to the ECF volumes. Approches adult level.", 'role': 'assistant'}]