Bart Buyer, the owner of Bart's Bargain Basement, sends a purchase order to Salena Seller for 1,000 My Little Autopsy toy sets--the season's hottest selling toy that, to the dismay of parents everywhere, allows children to simulate the thrills and chills of performing a real autopsy on an anatomically correct doll whose body parts can be removed with realistic blood and gore effects. Salena, who does not have the popular toy in stock, ships 1,000 My Undead Mummy dolls to Bart with a note that states: "These are shipped as an accommodation to your order at a 10% reduction off our regular wholesale price." When the dolls arrive, Bart rejects them (they are not gory enough, in his view, to suit the tastes of discriminating five-year-olds), and sues Salena for breach of contract. What result?