Final answer:
Dust mites primarily feed on shed human skin and thrive in environments that contain organic debris.option a.
Step-by-step explanation:
The common dust mite is a tiny creature that feeds on organic debris, such as shed human skin. These minute beings are relatives of spiders and are so small they are hardly visible without magnification. In the context of house cleanliness, even with frequent and thorough cleaning, completely eliminating dust mites is not feasible as they are abundant in house dust. Importantly, their feces contain proteins that can trigger asthma attacks, making them a health concern, particularly for those with respiratory sensitivities.
Additionally, the subject of dermatophytes is somewhat related, as these fungi feed on keratin found in skin, hair, and nails and can cause skin infections. While dust mites do not feed on fungi directly, the environments that support fungal growth can also be hospitable to dust mites. Therefore, addressing moisture and organic debris is critical in managing both mites and fungal growth in living environments.