In a recent class-action lawsuit, California and New York residents sued the Kellogg Company for false advertising, based on the packaging of the company's Cheez-It crackers. The Cheez-It packaging reads "Whole Grain" or "Made with Whole Grain" in bold letters on the front of the box. The ingredient list, however, lists "enriched white flour" first, and the nutritional label says that the crackers contained just 5 to 8 grams of whole grain. The plaintiff- consumers argued that they were "tricked" into purchasing the product, thinking the product was predominantly made of whole grain. Under what federal statute can these plaintiffs file suit? Please be sure to spell your answer correctly.