Which linguistic technique did Apple deliberately use when naming its virtual assistant 'Siri' to enhance global marketability?

The intersection of linguistics and retail marketing creates fascinating product naming strategies. Companies invest heavily in linguistic research to create names that resonate across languages and cultures. Some names are carefully crafted to evoke specific emotions or associations, while others undergo extensive testing to ensure they don't have negative connotations in any major language. Test your knowledge of how language shapes retail product marketing!

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They chose it because it contains no bilabial consonants, making it easier to pronounce in most world languages
They selected a name with phonotactic patterns that exist in multiple major language families
They used a palindromic structure to ensure universal recognition regardless of reading direction
They specifically chose a word with retroflex consonants to appeal to South Asian markets