Which component of a marine refrigeration system stores the liquid refrigerant charge and ensures a steady supply to the metering device?

Why B is correct

The receiver is a storage vessel located downstream of the condenser that holds the liquid charge and provides a steady supply of liquid refrigerant to the metering device regardless of load swings. It also provides capacity to pump the entire charge down for servicing. The filter-drier removes moisture and particles; the sight glass is an indicator only.