an edge city is a that develops the qualities and services usually found in central cities.a. greyfieldb. declining suburbc. tract housing developmentd. growing

D: growing suburb

An edge city is a growing suburb that develops the qualities and services usually found in central cities.

Explanation:

An edge city refers to concentration of  firms, shopping malls, entertainment in a previous residential or rural area. It can exist within the central business areas or outside. It is an attraction area for shoppers and  has many office spaces. Edge cities are centrally planned, convenient and seen as a city by residents.

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