In the vapor-compression refrigeration cycle, which component throttles high-pressure liquid refrigerant to low pressure, allowing it to boil at a low temperature in the evaporator?

Why C is correct

NAVEDTRA 14075 §6-1 describes the metering device as the component that throttles high-pressure liquid to low pressure, causing the refrigerant temperature to drop so it can boil at low temperature in the evaporator. The compressor raises pressure, the condenser rejects heat, and a receiver is not one of the four essential cycle components.