Which struggling product was famously revitalized in the 1980s after the company returned to its original formula following widespread customer backlash against a new version?

In the competitive world of retail, some products face near-extinction only to make remarkable comebacks. These resurrections often involve innovative marketing strategies, product reformulations, or shifting consumer sentiments. Test your knowledge about one of the most notable product revivals in business history—a case study that's now taught in many business schools as an example of how to turn around a failing product through consumer feedback and strategic repositioning.

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Coca-Cola Classic (after the New Coke failure)
Apple Macintosh (after the Newton PDA disaster)
Pepsi Crystal (after initial market rejection)
McDonald's Arch Deluxe (following poor initial sales)