Which linguistic phenomenon has been specifically identified as most effective in increasing engagement rates for social media advertisements across multiple language markets?

In today's global marketplace, language plays a crucial role in how brands connect with consumers through social media advertising. Linguistic strategies in digital marketing have evolved significantly, with companies investing heavily in understanding the psychological impact of language choices in their campaigns. This poll tests your knowledge about how language and linguistics intersect with modern social media advertising techniques.

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Code-switching (strategic alternation between two or more languages in the same advertisement)
Hyperbolic language (extreme exaggeration of product benefits)
Synthetic personalization (creating an illusion of speaking to individuals in mass communication)
Archaic lexicon (using traditional or older vocabulary to create a sense of authenticity)