Which of the following best describes a 'dormitory town'?

A dormitory town is characterized primarily by its population dynamics, specifically in relation to employment. Such towns typically do not contain a significant number of jobs or economic opportunities themselves. Instead, they primarily serve as residential areas where individuals sleep and live but commute to other locations—often nearby urban centers—for work. This phenomenon arises when people choose to reside in more affordable or desirable living conditions, while traveling to urban environments daily for employment.

For the other choices, while a town with high employment opportunities suggests a vibrant local economy, this is contrary to the nature of dormitory towns, which lack sufficient job availability for their residents. A town with no residents would not qualify as a dormitory town since it inherently requires a population living there. Lastly, a bustling city center typically represents a hub of activity, job availability, and amenities, which again contrasts with the definition of a dormitory town as an area primarily meant for residents who commute elsewhere for their work needs.