Final answer:
Shelves in a refrigerator should be slatted to allow better air circulation. Wrapping food tightly before freezing is recommended to minimize freezer burn, as it prevents moisture from crystallizing on the surface of the food.
Step-by-step explanation:
The question of how shelves in a refrigerator should be arranged is often related to efficiency and food safety. In this case, the best option is b. slatted, as slatted shelves allow for better air circulation around refrigerated items. This promotes even cooling and can help maintain proper food temperatures. It is not recommended to line shelves with aluminum foil or plastic wrap as these can restrict air flow. Heavy loading of shelves should also be avoided to ensure air can circulate freely.
Another way to minimize freezer burn is to wrap food tightly before freezing. This is because wrapping food tightly reduces its exposure to air, which contains moisture that can crystallize and lead to freezer burn. Tight wrapping acts as a barrier, keeping moisture in and air out, thus protecting the food's texture and flavor during storage in the refrigerator or freezer.