Aside from Raising Food Yields from 50 to 67 Percent,the

Aside from raising food yields from 50 to 67 percent,the movement from a two-field system to a three-field system resulted in:

A) lower yields per acre and increased labor output.
B) the use of fewer plough animals like oxen or horses.
C) higher yields per acre and a more even distribution of labor throughout the year.
D) more people being needed on each manor to work the land.
E) the introduction of irrigation systems.