Which model of city growth describes the city as a central business district surrounded by a zone in transition than a zone of workingmen’s homes residential zones, and the commuters. zone ?

Which model of city growth describes the city as a central business district surrounded by a zone in transition than a zone of workingmen’s homes residential zones, and the commuters. zone ?

A. the multiple nuclei model
B. the sector models
C. the concentric circle models
D. the social area analysis model