You Work Part-Time at a Local Diner and Have Noticed

You work part-time at a local diner and have noticed that there are a few questionable practices going on behind closed doors.An older employee tells you that the worst of these oversights is the workers' disregard for the "danger" zone.Which of the following applies to this employee's warning?

A) Keeping the freezer at 35°F
B) Serving raw seafood without proper cooking techniques
C) Keeping beef patties on a warm grill (135°F) for up to 3 hours
D) Not disposing of egg shells immediately after use and allowing them to sit on countertops