Answer: Autoclaving
Step-by-step explanation:
An autoclave is defined as a scientific instrument in which a pressure chamber is used to carry out industrial processes that require an high temperature and pressure which is different from existing air pressure.
Autoclaving is most effective way for microbial control as the microbes are killed by altering their cell membranes and denaturing proteins.
The standard temperature or pressure that is 121ºC/15 psi for 15 to 20 minutes. High temperature is required for rapid killing.
Hence, Autoclaving is more effective.