Which of the following best explains the changes in China’s population shown in the table above? *
 1 point
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 Immigration to China increased due to religious persecution of Buddhists in India and Southeast Asia.
 Agricultural output increased as a result of the use of the new crop strains, iron plows, and expanded irrigation.
 Less warfare with neighboring states and nomadic peoples also meant fewer casualties in wars and a population increase.
 The Confucian emphasis on the importance of family led many Chinese to have more children.