Answer:
Sector model theory suggested that cities grow in a circular fashion
Thus Option D is the right answer.
Step-by-step explanation:
Concentric Circle growth model is first envisaged by Ernest Burgess who specifies that urban settlements of Chicago are based on this pattern. It starts with the central commercial region in the mid of the city.
Workers and employees who can afford their own transportation and rent are settled around the business hub. The second zone consists of offices and factories, industrial warehouses and transportation hub.
Third zone comprises of the typical residential houses. Mostly working class resides in this third zone. Fourth zone is also another residential area for elite and white collar job holders.