Respuesta :
The correct answer is "social class."
Many city neighborhoods were divided sharply according to social class.
As part of the urbanization process in the United States, people started to move from downtown locations through better neighborhoods in the suburbs. The construction of better roads and modern highways helped people to move to the suburbs, where neighborhoods were divided sharply according to social class. These new places offered all the needed services such as shopping centers, parks, hospitals, and schools.