Which language learning company first used the slogan "The fastest way to learn a language guaranteed" and later became known for its distinctive green owl mascot?

Language shapes how companies present themselves to the world. Behind many successful language learning platforms and linguistic tools are clever branding decisions that have become iconic in their own right. This trivia question explores the origins of a famous language learning brand's slogan that revolutionized how people perceive language acquisition. Test your knowledge of product marketing in the linguistics industry!

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Duolingo
Rosetta Stone
Babbel
Pimsleur