D) A percentage of the sale
By accurately placing highlights and shadows an artist can create the illusion of form. Chiaroscuro - An Italian word that means the arrangement of light and shadow. Today chiaroscuro is also called modeling or shading.
I’m guessing it wants you to fill in two major key signatures like D major and C major also with two minor key signatures like A minor and B minor. I picked those key signatures because A minor is the same as C major but it starts on A and D major and B minor is the same but it starts on B
