Answer: Newton's first law of motion states that an object at rest remains at rest and an object in motion remains in motion with the same velocity unless acted upon by what we call an unbalanced force. There for the answer is A
Explanation :
Thermal energy transfer through conduction, conduction involves the direct transfer of heat from one object to another object that is contacted.
Thermal energy transfer through convection, convection involves the movement of warm particles.
Thermal energy transfer through radiation, radiation involves the movement of electromagnetic waves.