This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Microbiology
[{'content': 'Temperature required for holding period of 20 minutes in Hot air oven - \nSelect and explain. \nA. 160deg C, B. 170deg C, C. 120deg C, D. 130deg C', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 170deg C MethodTemperature (degC)Holding time (in minutes)Autoclave12112613415103Hot air oven16017018019045187[?]51[?]5", 'role': 'assistant'}]