According to linguistic research, which language feature has been proven most effective in creating globally memorable brand slogans that work across multiple languages?

Brand slogans are fascinating intersections of linguistics and marketing. The most effective ones leverage phonological patterns, semantic resonance, and cultural context to create memorable linguistic artifacts. This poll tests your knowledge of how language science influences slogan creation and memorability in the linguistics industry. Can you identify which linguistic device has been proven most effective in creating memorable slogans that transcend language barriers?

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Phonological reduplication (repetition of sounds like in 'Coca-Cola')
Semantic ambiguity (multiple possible interpretations like Apple's 'Think Different')
Syntactic inversion (unusual word order like 'Impossible is Nothing' by Adidas)
Morphological blending (combining word parts like 'Netflix' from 'internet' and 'flicks')