Which linguistic device is primarily used in Nike's famous slogan 'Just Do It' to create its powerful psychological impact?

In the fascinating intersection of linguistics and marketing, companies carefully craft language to create memorable brand identities. Slogans are designed to be linguistically sticky - using techniques like alliteration, rhythm, assonance, and conceptual metaphors to lodge in consumers' minds. This poll explores how linguistic principles are applied in one of the world's most recognizable brand slogans, testing your knowledge of language's commercial power.

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Imperative mood (direct command form)
Phonetic symbolism (sound suggesting meaning)
Syntactic parallelism (repeated grammatical structures)
Euphonic alliteration (pleasing repetition of consonant sounds)