What does "squalid" refer to in terms of living conditions?

The term "squalid" is used to describe living conditions that are extremely dirty, neglected, and often associated with misery or poverty. It conveys a sense of degradation and a lack of proper sanitation or care, evoking images of environments that are not only unclean but also uninhabitable or distressing. In contrast to the other options, which describe living conditions in a positive light—being clean and orderly, comfortable and spacious, or modern and stylish—squalid specifically denotes a negative state of disrepair and uncleanliness. This understanding of "squalid" emphasizes the severity of neglect and hardship, making it the correct choice in describing such living conditions.