It's common for jazz musicians and fans to refer to certain songs as having "swing," indicating that the songs provoke a strong feeling, like the impulse to tap one's foot or dance. The exacl acoustic properties that give a song swing, however, have long been thought to be undefinable. To investigate swing, a team led by physicist Corentin Nelias delayed the downbeats and synchronized the offbeats in jazz piano solos and asked jazz musicians to compare the intensity of swing in each modified piece with the intensity of swing in the original piece. They found that participants were more than seven times likelier to characterize the modified songs as having swing than to characterize the original versions as having swing, suggesting that __ Which choice most logically completes the text? Choose 1 answer: A the acoustic properties that give a song swing are not easy for jazz musicians to manipulate. B jazz songs that feature the piano are more likely to have swing than are jazz songs that do not feature the piano. C synchronized offbeats tend to give a song swing regardless of whether downbeats are delayed. D the timing of downbeats and offbeats may play a crucial role in giving a song swing.