This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'About Sodium, true: \nSelect and explain. \nA. Normal serum level is 135-145 mEq/L, B. Daily intake is 150 mmol of NaC1, C. Major poion is extra cellular, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A i.e. Normal serum level is 134- 145 m eq/lit; B i.e. Daily intake is 150 mmol of NaCl; C i.e. major poion is extracellular', 'role': 'assistant'}]