Which of the following best describes suburbanization?

Suburbanization refers to the process where populations migrate from urban areas to suburban regions, typically involving a shift in residence to areas outside of the city. This phenomenon often occurs as individuals and families seek larger living spaces, improved housing conditions, and a perceived better quality of life that suburbs can offer, such as lower crime rates and access to schools. Suburbanization has also been facilitated by the development of transportation infrastructure, making commuting more feasible.

The other options fail to accurately depict this trend. The transition of rural areas into urban centers emphasizes the reverse process of urbanization, while the movement of people from suburbs to urban cities does not align with the definition of suburbanization. Lastly, an increase in rural population density refers to a different dynamic that does not directly relate to the suburbanization process.