Which item has the shortest holding time of 20 minutes?

The holding time for food items refers to the maximum duration that cooked food can be kept at the appropriate temperature before it needs to be discarded to ensure safety and quality. The question specifies that one of the items has the shortest holding time of 20 minutes, indicating that all of the options mentioned have comparable holding times.

In this context, McNuggets, Filets, and McBites have similar holding characteristics which lead to the conclusion that they all fall under the same holding period limitation of 20 minutes. Holding times are particularly influenced by factors like moisture, temperature, and the potential for bacterial growth, making it crucial to adhere to these time frames to ensure food remains safe to consume.

Understanding this aspect of food safety helps in maintaining the quality of the items served and in preventing foodborne illnesses, all of which are essential practices in the food service industry, including at McDonald's.