How Did Access to the Water of the Colorado River

How did access to the water of the Colorado River change the social relations of Californians in the Central Valley?

A) Access to this water system made some large farmers very wealthy but left many Mexican farmworkers unprotected and unorganized.
B) Access to this water system helped foster a new generation of family farms.
C) Access to this water system helped promote the development of organic farms for a more health-conscious urban market.
D) Access to this water system was cheap, so it allowed California growers to raise wages for their workers.