In the vapor-compression refrigeration cycle, which component throttles high-pressure liquid refrigerant to low pressure, causing it to chill before re-entering 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; the resulting pressure drop chills the refrigerant and allows it to boil at low temperature as it re-enters the evaporator. The compressor and condenser are on the high side, and the evaporator is where boiling occurs, not throttling.