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: Surgery
[{'content': 'All of these fluids are isotonic except \nSelect and explain. \nA. 0.9% Normal saline, B. 5% dextrose, C. Ringer lactate, D. 3% Normal saline', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Isotonic fluids are 0.9% Normal saline, 5% dextrose, Ringer lactate.', 'role': 'assistant'}]