Final answer:
Sneeze guards should extend 7 inches beyond the food and be 14 inches above the counter to effectively protect against contamination. Option 1 is the correct answer for these requirements.
Step-by-step explanation:
The appropriate size of sneeze guards depends on their intended use, which is to protect food on display from contamination. To be effective, sneeze guards should extend 7 inches beyond the food and 14 inches above the counter. Option 1 is the correct answer, meaning sneeze guards should reach out 7 inches past the food it’s protecting and should stand 14 inches tall above the countertop to prevent contamination from sneezes or coughs. These dimensions provide a barrier that is large enough to block potentially contaminated droplets from reaching the food.