Which best describes the difference between internal and thermal energy?
A}. Internal energy is the total potential energy in a substance, and thermal energy is the total kinetic energy in a substance.
B}. Thermal energy is the total potential energy in a substance, and internal energy is the total kinetic energy in a substance.
C}.Internal energy is the total potential and kinetic energies in a substance, and thermal energy is the part of internal energy that can be transferred to another substance.
D}.Thermal energy is the total potential and kinetic energies in a substance, and internal energy is the part of internal energy that can be transferred to another substance.