A. RPM
B. Throttle position
C. Fuel
D. Engine-coolant temperature
Fuel
Answer: Option C.
Step-by-step explanation:
A sensor is a particular kind of device which gives a reaction to an input of some type which enters from the physical environment.
The reaction that the sensor makes or the output that it gives is mostly a type of signal which is converted in the form that can be read or can be understood by the human beings. It is displayed at the location of the sensor.