The answer is A because it is used in most industries to create a blueish purple glaze for pottery. I hope that I could be a help and contact me if you need my help! If you can please mark this brainliest! Have a great day!
We now have technological communication, as well as ways of traveling to go across the world and see many art pieces.
Hope this helps! <3
What qualifies a functional object like this as a work of art?
