The Innovations That Drove the Agricultural Revolution Seem to Have

The innovations that drove the agricultural revolution seem to have originated with

A) peasants,who were desperate to feed their increasingly large families.
B) urban artisans,who introduced their workshop techniques to their extended family members who lived on farms.
C) rulers,who were eager to increase their military strength by increasing their population.
D) landlords,whose earnings had increased because their products were valuable to a growing population.