Final answer:
Insect light traps should be placed away from food and customers to ensure food safety and hygiene without being visible or intrusive to customers.
Step-by-step explanation:
Insect light traps should be installed in locations where they will be most effective and the least intrusive to customers and food preparation areas. The best option among those provided is to place the insect light traps away from food and customers. This approach ensures that insects are drawn away from areas where food is handled or consumed, thus helping maintain sanitary conditions. Putting traps near the customer entrances or near buffet tables could be unsightly and unhygienic, while locating them by the dry storage area might be less effective if that area doesn't have significant insect activity.