Which scenario best describes what happens to the energy in a system?

A
Once the balls in Newton's cradle make contact, the device loses kinetic and potential energy as some of that energy is converted to friction, heat, and sound.

B
Once Newton's cradle starts moving, the device continues to move forever since the energy of the system is not created or destroyed.

C
When a basketball falls from a table, the ball conserves its initial energy and bounces back to the same height of the table.