Because in its own way they both share a story either through the art or the music. Art shows the story while in music you listen to the story!
Chiaroscuro (I am not sure that is spelled right.)
Ice cause he can freeze me to death I’m kidding
I would say the correct answer is C. the cadenza.
Cadenza is defined as "<span>an </span>improvised<span> or written-out </span>ornamental passage<span> played or sung by a </span>soloist<span> or soloists,' so you can see that the important part of the cadenza is that it is improvised. It is used to show the skill of the performer.</span>