This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
[{'content': 'In an adult man weighing 70kgs, the extracellular fluid volume will be about \nSelect and explain. \nA. 42L, B. 25L, C. 14L, D. 12L', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Body water varies from 45-75% of body weight. The intracellular component of body water accounts for about 40% of body weight and the extracellular component constitute 20% of body weight. Hence 20% of 70 equals to 14L approximately. (REF TEXTBOOK OF MEDICAL P G N 2 EDITION, PAGE NO 61)', 'role': 'assistant'}]