Which statement BEST explains how the development of urban fringes differs in developed and developing countries?

A In developed countries, the edges of cities are better served by public transportation systems than they are in developing countries.
B In developed countries, the edges of cities tend to attract industry, while they attract low-income residences in developing countries.
C In developed countries, the edges of cities tend to have much higher population densities than they do in developing countries.
D In developed countries, the edges of cities tend to remain agricultural, while they become ghettoized in developing countries.
E In developed countries, the edges of cities tend to become suburbs, while they become slums in developing countries.