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
Bacterial spores are hest destroyed by- 
Select and explain. 
A. UV rays, B. Autoclaving at 121degC for 20 mints, C. Hot air Oven, D. Infrared rays
B: Autoclaving at 121degC for 20 mints
Answer: B: Autoclaving at 121degC for 20 mints 
Explanation: Ans. is 'b' i.e., Autoclaving at 121degc for 20 minutes Autoclaving . Autoclaving is a method to sterilize equipment by subjecting them to high pressure at 121degC or more. . It is sterilization by steam under pressure. . The device which is used for autoclaving is known as autoclave.