Final answer:
The correct answer is A. 135°F, which is the minimal internal temperature at which food held on a buffet for service must be maintained to ensure safety and prevent bacterial growth.
Step-by-step explanation:
To ensure the safety of food being held for service on a buffet, a certain minimal internal temperature must be maintained. This is crucial because bacteria and other microorganisms can multiply rapidly in the temperature 'danger zone' between 40°F and 140°F. Left unchecked, this rapid bacterial growth can increase the risk of foodborne illness.
Therefore, the correct answer to the question, 'Food held on a buffet for service must maintain a minimal internal temperature of what degree?' is A. 135°F. According to food safety guidelines, keeping hot foods at or above this temperature until served ensures that food remains safe for consumption.
Remember to always use a thermometer to confirm that food has reached the proper temperatures for safety as referenced in the provided materials.