Which linguistic phenomenon presents the biggest challenge for retail voice commerce systems when processing customer queries?

Voice commerce is transforming the retail landscape by leveraging natural language processing and speech recognition technologies. As more consumers adopt smart speakers and voice assistants, retailers are adapting their strategies to accommodate voice-based shopping experiences. This poll tests your knowledge about how language technology intersects with retail innovation in the emerging voice commerce space.

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Homonyms (words that sound the same but have different meanings, like 'pair/pear' or 'buy/by')
Code-switching (alternating between two or more languages in a single conversation)
Prosody (patterns of rhythm and intonation in speech)
Regional accents (distinctive pronunciation patterns from different geographical areas)