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': 'The normal range of serum osmolarity is \nSelect and explain. \nA. 350-375, B. 200-250, C. 270-285, D. 300-320', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Normal serum osmolarity ranges from 275 to 295 mOsm/L It is used to monitor hyponatremia,and other conditions Reference : guyton and hall12 Ed pg no: 45,46,47', 'role': 'assistant'}]