In a solid cylinder rolling without slipping down an inclined plane, which of the following correctly describes the relationship between translational kinetic energy and rotational kinetic energy?
A) The translational kinetic energy is equal to the rotational kinetic energy.
B) The translational kinetic energy is twice the rotational kinetic energy.
C) The rotational kinetic energy is twice the translational kinetic energy.
D) The translational kinetic energy is one-third of the rotational kinetic energy.