Which linguistic technique revolutionized product naming when Xerox became the first major brand to use a made-up word containing the letter 'X' - now a common branding practice?

In the world of language and linguistics, brand identity often relies on powerful naming strategies and linguistic innovation. Major companies invest heavily in naming research to create memorable, effective brand identities. This poll tests your knowledge of a significant linguistic innovation in product branding that changed how companies approach naming conventions.

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Phonetic symbolism - using 'X' to convey technological innovation
Morphological blending - combining 'xero' (dry) with graphics technology terms
Orthographic distinction - intentionally using uncommon letters for trademark protection
Sound symbolism - employing plosive consonants for memorability