Final answer:
Baked potatoes held at 120°F (48.9°C) are in the temperature danger zone.
Step-by-step explanation:
The hot held food that is in the temperature danger zone is option d) Baked potatoes held at 120°F (48.9°C). The temperature danger zone refers to the range of temperatures between 40 and 140 degrees Fahrenheit (4 and 60 degrees Celsius) in which bacteria multiply most rapidly. Since baked potatoes held at 120°F are within this temperature range, they are at risk of rapid bacterial growth and can become dangerous to eat.