The "well-field system" Select one: a. was an animistic belief designed to protect the health of the land. b. was originally developed by Aryan invaders to improve agricultural productivity in western China. c. was the first major agricultural advance in ancient China. d. was a water-diversion system which insured that every farm had the amount of water it needed. e. allowed peasants plots cultivated for their own use as well as land cultivated for their lords.