Final answer:
Aseptic techniques are protocols used to prevent contamination of a sterile field in medical settings. Antiseptics are agents used on living tissues for microbial control, while filtration is a method to physically remove microbes without killing them. Option C.
Step-by-step explanation:
Methods used to prevent contamination of the sterile field are referred to as C) Aseptic techniques. Aseptic technique involves protocols that maintain sterility to prevent contamination with microbes and infectious agents.
These protocols include using sterilized materials and strict procedures to avoid microbial introduction during clinical procedures.
The suitable method for use on tissues for microbial control to prevent infection is B) antiseptic. Antiseptics are specifically designed to be safe for application on living tissues to reduce the risk of infection by inhibiting microbial growth.
However, methods that remove microbes physically without necessarily killing or inhibiting them include A) filtration. This process works by passing substances through filters that trap the microbes, effectively reducing microbial load without chemical or heat-based methods.
So Option C.