Final answer:
Jay is measuring the popularity of a song by counting how many people dance to it when he plays a country song. He is interested in the song's impact on people's behavior, specifically its ability to make people dance.
Step-by-step explanation:
Jay is interested in seeing which songs are most effective at getting people to dance. To determine this, he plays a whole song in a country genre and counts the number of people on the dancefloor. This helps Jay to assess the song's impact on the audience and, in particular, its popularity of the song in terms of its ability to get people moving and dancing. In this context, popularity doesn't necessarily mean how well-known the song is, but rather how it influences people's behavior in the moment by making them want to dance.
When we consider what draws us to a type of music, factors like lyrics, rhythm, and the experience or feeling may come into play. These elements are critical when assessing a song's appeal. When attending a live performance, elements such as the singing, the playing of instruments like a guitar, the dance, and even the handclaps contribute to the overall experience.
Therefore, the correct answer to Jay's question is option 4), he is trying to determine the popularity of the song based on how many people it can get onto the dancefloor.