You must sanitize your hands after.....

Sanitizing your hands after any of the listed activities is essential for maintaining hygiene and preventing the spread of bacteria and germs, especially in a salon environment where clients come into contact with your hands during nail services.

Throwing something in the trash could expose your hands to bacteria present on the trash itself. Touching your hair can transfer oils and dirt from your hair to your hands. Dropping an item on the floor can pick up and transfer various contaminants that are commonly found on floors.

By sanitizing your hands after each of these activities, you ensure that you are not introducing any possible contaminants to your clients or to the tools you will be using during a service. Therefore, the correct response encompasses all scenarios, affirming the practice of hand hygiene in personal care services.