Ariverbed slopes steeply down a hill. which statement best explains the water’s potential energy at the top and bottom of the hill, all else being equal?

a. the potential energy of the water at the top of the hill will be less than the potential energy at the bottom because the water at the top is higher in earth’s gravitational field.

b. the potential energy of the water at the top of the hill will be greater than the potential energy at the bottom because the water at the top is higher in earth’s gravitational field.

c. the potential energy of the water at the top of the hill will be less than the potential energy at the bottom because the water at the bottom is higher in earth’s gravitational field.

d. the potential energy of the water at the top of the hill will be greater than the potential energy at the bottom because the water at the bottom is higher in earth’s gravitational field.