Why Is China's Urban System Such a Good Example of Central

Why is China's urban system such a good example of Central Place Theory?

A) because China's urban system is balanced, with sizable cities relatively evenly spaced and no city overshadowing others
B) because China's urban system uses straight lines for roads all leading into the central plaza of the city
C) because China's urban system was carefully planned by the country's communist leaders based on Central Place Theory
D) because China's urban system has a primate city in each of its provinces
E) because China's urban system is constantly expanding into the rural hinterlands