A Bill of Lading functions in three ways: as a ________ of goods, issued by the carrier or their agent to the shipper or their agent in exchange for the receipt of the cargo; as ________ of contract of carriage, established when the shipper or their agent made a booking with the carrier to carry the goods from A to B; and as a ________ to the goods, it means that whoever is the holder of the B/L has the title to the cargo or the rights to claim the cargo. A、document title, proof, receipt B、receipt, document title, proof C、receipt, proof, document title D、proof, receipt, document title