Which of the Following Statements Concerning the Urban Poor in Third

Which of the following statements concerning the urban poor in third world cities is most accurate?

A) Despite their condition and large numbers, the urban poor of the third world have not had a political impact.
B) Development specialists have concluded that slums provide the only urban housing the poor are likely to find.
C) Cities in the third world, fueled by the existence of cheap labor supply, have become the most productive centers of the economy.
D) Third world cities generally display the markings of careful urban planning in their programs of expansion.