Final answer:
The air waybill is a legal contract between the shipper and carrier. Option a is correct.
Step-by-step explanation:
The correct answer is a) Legal contract between the shipper and carrier.
An air waybill is a legal contract between the shipper (the person or company shipping the goods) and the carrier (the airline or freight forwarder responsible for transporting the goods by air). It serves as a receipt of the goods, a contract of carriage, and a document of title.
For example, when a company ships goods internationally, they will typically issue an air waybill to the airline or freight forwarder outlining the details of the shipment, including the type of goods, the quantity, the destination, and any special instructions.