D) Media
Media also means the internet, and watching too much internet can possibly damage your sight.
Probably gloves and a mask, because the most common transports of the flu, is people geting germs on their hands, which are carried to their mouth. A mask would prevent bodily fluids on the hands from getting in the mouth, and gloves will prevent bodily fluids from adhering to the hands.
Wet floor signs when needed
Equipments are in correct places
Label everything
If anything happens on your shift, inform the next shift
Don't see any choices so thats what I could think of