Over the centuries, China has experienced an extraordinary increase in its population. A. Understanding the exceptional increase in population in China requires giving up commonly held assumptions relative to the phenomenon of population growth. B. The economist Dwight Perkins applied a particular statistical method to determine the increase in China's population. C. The sudden population growth in China started in its northern and southern provinces, and it spread rapidly to the central and western areas of the country. D. Improved transportation management and enhanced disease control contributed to China's population explosion. E. The increase in China's food supply, which affected population growth, was the result of technological developments in agriculture and capital investment. F. A steady increase in foreign trade since the 1400s provided the conditions necessary for large-scale agricultural development.