A Flowerpot of Mass M, Initially at Rest, Falls a Distance

Multiple Choice

A flowerpot of mass m, initially at rest, falls a distance h to the ground below. In the absence of air resistance, the graph that best represents the flowerpot's potential gravitational energy as a function of the distance fallen is

A) a straight line with a negative slope.
B) a straight line with a positive slope.
C) a vertical line.
D) a horizontal line.
E) a parabola.