How do the Yangzi and Yellow River Valleys play into the development of Chinese civilization? a. They serve as the places where civilizations were able to grow the strongest.
b. They serve as the origin of where ancient people learned to grow and harvest rice.
c. They are considered the most learned areas of all of Chinese civilization.
d. They are the only places in China that allow for ancient people to practice agriculture.
e. They can be considered the core regions in the development of civilization.