Pumping of groundwater in California most effectively: Select one:

a. Causes sediments in aquifers that are emptied to compact and the ground above it to sink
b. Promotes rejuvenation of the groundwater resource via lateral groundwater flow
c. Decreases water reserves in Hetch Hetchy reservior in the Sierra Nevada
d. Is necessary due to reduce flooding over subsided areas and protect infrastructure
e. All of these