A

Uncovered lightbulbs may expose food to physical and chemical hazard.

Explanation:

Food safety is concerns with a variety of hazards, including biological, chemical, and physical.

Biological hazards occur due to bacteria, viruses, parasites, and mold in products, which lead to foodborne illness.

Chemical hazards happen when toxic chemicals or allergens stain the food and can also be dangerous.

Uncovered lightbulb.
Source: https://www.centerjava.com

Finally, when an accident has led to the presence of foreign structures in the food, it is called a physical hazard. Glass, bones, hair, and bugs in food pose a severe threat to health and safety.

When people expose food to uncovered lightbulbs, both physical and chemical hazards are evident. On the one hand, the lightbulb might break due to pressure, and pieces of glass will enter the food. On the other hand, in some lamps, mercury is used to produce light. When a lightbulb of this type breaks, the food can be contaminated by mercury, which is toxic.