This region in China includes three cities of over 5 million inhabitants (Hong Kong, Guangzhou, and Shenzhen); five cities with more than 1 million inhabitants (Zhuhai, Huizhou, Foshan, Zhongshan, and Dongguan); and a number of cities that each contain approximately half a million inhabitants, such as Macau. Identify the region.
A. Shanghai
B. Northeast China
C. Yangtze River Delta
D. The Greater Pearl River area
E. Taiwan
Answer: D. The Greater Pearl River area