Which of the following documents is a contractual agreement used to move (ship) the goods from the vendor to the jobsite?

The bill of lading serves as the correct choice in this context because it is a formal document issued by a carrier to acknowledge that they have received the goods for transportation. It outlines the details of the shipment, including the type of goods, quantity, destination, and the terms of the transport. This document acts as both a receipt for the goods and a contract for carriage between the shipper and the carrier, making it essential for logistics and transportation of goods to a job site.

In contrast, a purchase order is used primarily to initiate a purchase from a vendor, specifying the products and services required, but it does not facilitate the actual movement of goods. A delivery receipt, on the other hand, is used to confirm that goods have been received by the buyer or designated party, serving as an acknowledgment rather than as an agreement for transportation. Lastly, a work order is typically a document that outlines the tasks to be carried out in a project but does not directly relate to the shipping process of goods.