By around 3:00 p.m., catering employees should throw out lasagna as per ServSafe. The correct option is C.
The National Restaurant Association manages the ServSafe food and beverage safety training and certification program (NRA).
In this, the food should be discarded after a given period of time to avoid food contamination.
Thus, as at conference room, there cannot be any option to preserve food so at around 3:00 pm the lasagna should be discarded, option C is correct.
For more details regarding ServSafe, visit:
https://brainly.com/question/27975060
#SPJ2