TOEFL Listening: TPO-TOEFL阅读TPO - VA1IH648IV58DVB0N$

According to paragraph 3, what was one reason villages had such great economic potential? A. Villages were located in regions where agricultural production was relatively advanced. B. Villages were relatively small in population and size compared with urban areas. C. Some village inhabitants made investments in industrial development. D. Village inhabitants established markets within their villages.