A food worker at a deli spends three and a half hours slicing meats on a deli slicer. She takes a lunch break and returns to the deli.

What must she do before using the deli slicer?

A$.$ Wipe off the slicer

B$.$ Dip hands in sanitizer

C$.$ Clean and sanitize the slicer

D$.$ Rinse the meats that will be sliced