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 a Chinese geographer developed Central Place Theory based specifically on China's urban system
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