An ad in a newspaper reads: "AVAILABLE TODAY ONLY. FRIENDLY'S APPLIANCES. CLEARANCE SALE FOR ALL FLOOR ITEMS. 75% OFF RETAIL PRICES." Joan Ludwig arrived at Friendly's about one hour after it opened and there were no appliances left. ​ The issues in the situation are governed by: a. The Uniform Commercial Code b. UETA c. common law d. restatement of contracts e. none of the above