Does anyone knows the answer to this?

Why did david smith burnish the surface of his work cubi xix?

Where does middle c get it’s name? a. it sits in the middle of a brass clef b. it sits in the middle of the grand staff c. if sits in the middle of the alto clef d.its sits in the middle of the treble clef

Which character of art pop art in roy lichtenstein’s artwork choose all that are correct it is inspired by america it depicts by american culture it has delicate lines and detailed shapes it is printed with bold colors and shapes