The Addition of Important New Food Crops Was an Important

Multiple Choice

The addition of important new food crops was an important factor in Chinese population growth, resulting in populations of:

A) About 60 million in 1368 to 150 million in 1600, and about 300 million by 1800.
B) About 60 million in 1368 to 100 million in 1500, to about 200 million by 1800.
C) About 60 million in 1368 to 200 million in 1500, to about 250 million by 1800.
D) About 60 million in 1368 to 75 million in 1500, to about 400 million by 1800.