Final answer:
The concentric zone model recognizes five zones: Zone A in the city center, Zone B with cheap apartments and marginal businesses, Zone C with working class homes, Zone D with wealthy homes and shopping centers, and Zone E with upper class estates.
Step-by-step explanation:
The concentric zone model recognizes five zones. Zone A is located in the heart of the city and represents the center of the business and cultural district. Zone B surrounds Zone A and includes formerly wealthy homes that have been divided into cheap apartments for new immigrant populations, as well as small manufacturers and pawn shops.
Zone C consists of the homes of the working class and established ethnic enclaves. Zone D contains wealthy homes, white-collar workers, and shopping centers. Finally, Zone E is located in the exurbs and suburbs and contains the estates of the upper class.