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
Temperature required for holding period of 20 minutes in Hot air oven - 
Select and explain. 
A. 160deg C, B. 170deg C, C. 120deg C, D. 130deg C
B: 170deg C
Answer: B: 170deg C 
Explanation: Ans. is 'b' i.e., 170deg C MethodTemperature (degC)Holding time (in minutes)Autoclave12112613415103Hot air oven16017018019045187[?]51[?]5