This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: general microbiology, Subject name: Microbiology
Sterilising agents include - 
Select and explain. 
A. Dry heat, B. Ethylene oxide, C. Ether, D. Alcohol
A: Dry heat
Answer: A: Dry heat 
Explanation: Sterilisation can be classified physical and chemical agents A.Physical agents. Sunlight Dry heat Moist heat Filtration A)Radiation B).Chemical agents Alcohols; AldeAldehydes dyes Halogens Phenols Surface active agents Metalic salts REF:Ananthanarayan & paniker's textbook of Microbiology 9th edition 28