I can't listen to the audio samples directly, but I can help you understand what syncopation is and how to identify it in a melody. Syncopation typically involves emphasizing beats or offbeats in a way that creates a rhythmic surprise or shift in the expected pattern. You might look for changes in rhythm, where a note falls on a weak beat or between beats, making the melody feel more dynamic and unexpected.
If you describe the melodies or their rhythmic patterns, I can help you determine which one may best represent syncopation!