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: Microbiology
[{'content': 'Heat labile instruments for use in surgical procedure can be best sterlized by : \nSelect and explain. \nA. Absolute alcohol, B. Ultra violet rays, C. Chlorine releasing compounds, D. Ethylene oxide gas', 'role': 'user'}, {'content': 'Answer: D \nExplanation: “Heat sensitive articles may be sterilized at 55-60 0 C by ethylene oxide which kills bacteria, spores, viruses.”\n\nIt is highly penetrating and highly explosive.\nCO2 or N2 decrease its explosive tendency and water vapour increase its efficacy.\nIt acts as alkylating agent.\nIt is specially used for sterlizing heart - lung machines, sutures, dental equipment, books, fabrics, plastic equipment, cardiac catheters, clothing, glass, plastics, metal and paper surfaces.\nIt is unsuitable for fumigating room since it is explosive.', 'role': 'assistant'}]