Hello, this is business law study could you please help me in solving this, this is part of my assignment from chapter 21 sales of goods.And with each and every principle applies on it.

Stubert operated a produce brokerage, buying agricultural produce and reselling it to any of 30 smaller independent regional distributors. Each distributor served an area no greater than a city, and some competed with one another. The distributors generally sold to independent convenience stores, and they vied for institutional sales such as hospital kitchens. Stubert visited a farmers' co-operative in an agricultural area, and after some discussion secured a truckload of tomatoes at the wholesale market price for Number 1 Grade Hothouse Tomatoes. Three weeks later, a commercial-freight company truck arrived in Stubert's part of the province with the tomatoes. Stubert had the driver open the van, and he looked at the frames of cello-packed tomatoes visible from the door. They appeared fine, so he handed over his $4,400 bank draft to the driver in return for the bill of lading. He endorsed the bill of lading and gave it back to the driver with instructions to him to carry on, as was often the case, to one of his bigger customers, a

distributor in the next town. The driver was to turn over the bill of lading against a payment of $6,700. When the driver returned to Stubert's premises, he had no payment to deliver, but he still had the entire load of tomatoes. The distributor had insisted on unloading the tomatoes before payment. He had found that while the tomatoes near the doors were Number 1 Hothouse, those beyond the doors were at best Number 3 Hothouse, or perhaps even Field Grade. The distributor rejected the shipment, packed it back on the truck, and sent the driver back to Stubert. Stubert demanded a return of his bank draft and ordered the tomatoes to be returned to the cooperative. The driver said his company rule was that a driver is to always leave the load with the last person who pays, and that one never returns money once it is received. Accordingly, he off-loaded "Stubert's" tomatoes despite the protests of Stubert, and drove away. Advise the parties, including a commentary on the trucking company's policy. Render a decision.