Final answer:
Yes, under the UCC, a buyer can refuse an entire shipment and sue for breach of contract if the goods are non-conforming or defective. The buyer must act promptly and notify the seller.
Step-by-step explanation:
Under the Uniform Commercial Code (UCC), it is true that a buyer has the right to refuse an entire shipment of goods and sue for breach of contract if the goods do not conform to the contract. The UCC permits rejection of the goods under certain circumstances, such as non-conformity or defects.
However, the buyer must act within a reasonable time and give notice to the seller of the rejection. Rejection must be based on a substantial non-conformity, and the buyer generally has rights to remedies that can include canceling the contract, seeking substitute goods, or pursuing damages.