Which of the Following Is True Concerning Safety and Infection

Which of the following is true concerning safety and infection control during finishing and polishing procedures?

A) The use of preprocedure antimicrobials has not been shown to reduce microbial aerosols.
B) Use of the saliva ejector is recommended rather than high-speed evacuation.
C) All laboratory wheels and rotary cutting devices should be sterilized or disinfected.
D) Protective eyewear is not recommended for the patient because it cannot be disinfected.