Final answer:
The labels on containers of ready-to-eat TCS food that was prepped on-site for on-site service must include the common name of the food, along with other important information such as ingredients, potential allergens, and reheating instructions if applicable.
Step-by-step explanation:
The correct answer is d. common name of the food. Labels on containers of ready-to-eat TCS (Time/Temperature Control for Safety) food that was prepped on-site for on-site service must include the common name of the food. This is important for food safety and helps to properly identify and track the food.
In addition to the common name, other important information that should be included on the label includes ingredients, potential allergens, and reheating instructions if applicable. These details are necessary to inform consumers about the contents of the food and any instructions or precautions that need to be followed.