What Effect Has the Shift in North American Economies from a Manufacturing

What effect has the shift in North American economies from a manufacturing to a service and knowledge base had on edge city residents?

A) People prefer to isolate themselves socially and geographically.
B) People are inclined to live and work in the same geographic area.
C) People prefer to commute from the edge city to the corporate offices downtown.
D) People prefer to live in microsocieties scattered across the urban landscape.