Final answer:
Sneeze guards must be placed at least 12 inches above the counter to prevent the spread of germs and ensure sanitary conditions in food service areas. The correct option is D.
Step-by-step explanation:
Sneeze guards, often found in food service establishments, are important for maintaining hygiene and preventing the spread of germs. According to health and safety regulations, a sneeze guard should be located at least 12 inches above the counter to effectively block airborne particles that can contaminate the food on display.
This height ensures that sneeze guards serve their purpose of serving as a barrier between the food and any potential contaminants from customers and staff.