According to NEC guidelines, what defines a "habitable room"?

A "habitable room" is defined according to NEC guidelines as a room intended for living purposes, such as those used for sleeping, cooking, or general living activities. This definition reflects the intent of the National Electrical Code to ensure that electrical systems are designed and installed safely in spaces where people spend significant amounts of time and engage in various activities.

Rooms specifically designed for storage or utility purposes do not qualify as habitable rooms because they are not intended for human occupancy or living functions. Similarly, a bathroom does not wholly meet the criteria of a habitable room because, while it serves a necessary purpose in a home, it is often not considered a space for extended living or activities beyond essential hygiene tasks. Therefore, the key factor in defining a habitable room is its function and suitability for activities that support comfortable living, which aligns with the characteristics outlined in the first choice.