A Thermoelectric Cooler Is a Type of Heat Pump That

A thermoelectric cooler is a type of heat pump that uses electric power to move heat against its natural direction of flow. In other words, it takes energy from a system and transfers it to another system which is at a higher temperature. In such a heat pump

A) the entropy of the system must be conserved.
B) Newton's laws of motion prevent heat from moving from a cool region to a warm region.
C) the cooler requires power input because the flow of heat from a cool region to a warm region alone would decrease the entropy (disorder) of the system.
D) the cooler requires power input the flow of heat from a cool region to a warm region alone would violate the conservation of energy.