Final answer:
The phrase that completes the sentence is 'No me gusta'.
Step-by-step explanation:
The correct phrase that completes the sentence is 'No me gusta'.
This phrase means 'I don't like it' in Spanish and is the appropriate response to the given sentence 'el reproductor mp3 porque prefiero estudiar y no escucho música'.
It shows a preference for studying rather than listening to music.
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