This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Physiology
[{'content': 'Most accurate measurement of extracellular fluid volume (ECF) can be done by using \nSelect and explain. \nA. Sucrose, B. Mannitol, C. Inulin, D. Aminopyrine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Inulin(Ref: Guyton, 13th ed/p.309)Inulin - Gold standard substance for ECF measurementOther indicators used in ECF measurement are,#Sucrose#Mannitol#Sodium Thiosulphate', 'role': 'assistant'}]