Which of these retail innovations revolutionized the language learning industry by introducing the first successful subscription-based language exchange platform with native speakers?

In the world of linguistics, retail has evolved to meet the unique challenges of language learning and communication. From traditional dictionaries to AI-powered language apps, companies have pioneered innovative approaches to help people master new languages. This trivia tests your knowledge about a groundbreaking retail innovation that changed how we approach language learning and linguistic services. Can you identify the correct retail innovation that disrupted the linguistics market?

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Rosetta Stone's mall kiosks with interactive language learning stations (2001)
iTalki's peer-to-peer marketplace connecting language learners with native tutors (2007)
Oxford Dictionary's print-to-digital transformation with personalized learning paths (2009)
Merriam-Webster's AI-powered pronunciation feedback system in physical bookstores (2005)