Which brand slogan holds the Guinness World Record for the longest continuously used advertising slogan in history?

Brand slogans can make or break a product's success in the marketplace. Some have become so iconic they've set world records for longevity, recognition, or market impact. This poll tests your knowledge about the world of record-breaking brand slogans that have shaped consumer behavior and marketing history. Can you identify which famous slogan holds the remarkable distinction mentioned in the question?

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De Beers: 'A Diamond is Forever' (1948)
Coca-Cola: 'Delicious and Refreshing' (1904)
Maxwell House: 'Good to the Last Drop' (1915)
Kellogg's: 'The Best to You Each Morning' (1932)