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: Gynaecology & Obstetrics
[{'content': 'Distending media used in hysteroscopy are all except \nSelect and explain. \nA. Carbon dioxide, B. 5% dextrose, C. Glycine, D. Distilled water', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Distending media used in hysteroscopy\n\nCarbon dioxide\n5% Dextrose\nGlycine\nHyskon (32% dextrose)', 'role': 'assistant'}]