The Regulation of Room Temperature by a Thermostat Is an Example

The regulation of room temperature by a thermostat is an example of a feedback loop. In this system, a sensor within the thermostat detects a change in temperature below a programmed set point. The thermostat then sends a signal, which turns on the furnace. The furnace heats the room bringing it back up to the programmed temperature. Once the room temperature reaches the programmed set point, the thermostat "turns off" the furnace. Which of the following statements is consistent with the above scenario?

A) This scenario is an example of a negative feedback mechanism.
B) The thermostat is the "control center" while the furnace is the "effector".
C) This scenario is different from how negative feedback works in the body because negative feedback in the body maintains a normal range of values instead of one specific set point.
D) The "receptor" in this scenario is the temperature sensor within the thermostat.
E) All of these are true.