The correct answer is option B: "They represent different concepts".
Explanation:
While at first glance heat and thermal energy could be considered synonymous, these two terms represent different concepts. Thermal energy is defined as the internal energy that objects have due to the kinetics of its atoms, where a hotter object have more kinetic energy while a colder object have less kinetic energy. On the other hand, heat is a term used to describe the transference of thermal energy between two or more objects.
