A farmer who uses geese to eat snails in his plant beds, has baited jars to capture flies near his barn, and hand-picks the June beetles from his roses has chosen to use controls to deal with these pests.

The correct answer as to which activities depend on the availability of supplies of freshwater is D. all of the above. Agriculture and tending to crops depends on water because the soil needs it if plants are to grow there. Obviously, bathing and drinking depend on water, because you cannot do these things unless there is enough freshwater. Thus, D is the correct answer.