Which famous advertising tagline, created in 1929, revolutionized marketing by introducing the concept of 'inferiority anxiety' to sell products?

Before the digital age transformed marketing, certain advertising taglines revolutionized how products were sold and remembered throughout history. These powerful phrases became cultural touchstones, influencing consumer behavior for decades. This question focuses on a groundbreaking tagline from the early 20th century that transformed advertising psychology and set the template for modern brand messaging. Test your knowledge of this pivotal moment in retail history!

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Reach for a Lucky Instead of a Sweet
A Diamond is Forever
Halitosis Makes You Unpopular
Good to the Last Drop