Final answer:
In the concentric zone model, Zone B typically features formerly wealthy homes that have been converted into cheap apartments, accommodating new immigrant populations and various marginal businesses.
Step-by-step explanation:
In the concentric zone model, Zone B is likely to house 'c. Formerly wealthy homes split into cheap apartments' for new immigrant populations. This zone is a transitional area that surrounds the central business district (Zone A) and contains a higher density of population than outer zones. It also includes a mix of marginal businesses such as small manufacturers and pawn shops. Zones beyond Zone B consist of different residential and commercial areas tailored to various socio-economic groups, with Zone C housing the working-class, Zone D being a home for wealthy homes and white-collar workers, and Zone E containing estates of the upper class in the suburbs and exurbs.