Which of the following elements is usually not changed in varying the theme in theme-and-variations form?

Which song expressed Madonna's affinity for gay subcultures?

a. "Vogue" b. "Like a Virgin" c. "Borderline" d. "Material Girl"

How does Goldsworthy’s sand sculpture contrast with the idea of the ka, discussed later in the chapter, and thus with the statuary through which it flows?

What will be an ideal response?