Use This Figure for the Questions That Follow

Use this figure for the questions that follow.

-Urban primacy occurs when ________.

A) a country's population is greater than 80 percent urban
B) a country implements a policy to reduce urban sprawl
C) a country has a city three to four times larger than any other city in the country
D) the number of people residing in cities has exceeded that of those residing in rural areas
E) people in cities receive lower tax rates