A student is developing a model to explain how the distance between two objects affects the potential energy stored in the system. The model is shown below.

The model shows a child standing on the steps of a slide. An arrow pointing up labeled '1' is next to the steps and an arrow pointing down and to the right labeled '2' is above the slope of the slide.

Multiple Choice Question
Which statement BEST describes the energy in the system as the child slides down the slide?

A.
The total energy in the system increases.

B.
The total energy in the system decreases.

C.
Stored kinetic energy is converted to potential energy.

D.
Stored potential energy is converted to kinetic energy.

D. Stored potential energy is converted to kinetic energy.