A unique shape,colour,needs a background,texture thats all i rember from art class
A. key signature , the key signature is a list of all the sharps and flats in the key that the music is in.
I think its C, don't take my word for it though, I'm not 100% percent about this.
Answer:
cinnabar
Explanation:
A derivative of cinnabar was used. The cadmiums took over. The cadmium range of colors, including cadmium red and yellow are made from cadmium sulfide which is a metallic component with a little selenium.
hope this helps