The correct answer is Luminous
Explanation: The mosaics have a very old origin. They were already called mosaics in Crete, Mesopotamia and, as we know, in Greece and Rome.
The Romans built the mosaics with small cubic pieces called tessela. The materials of these tesserae were limestone, stained glass, ceramic.
Paleo-Christian art, now able to enjoy greater financial bases and relegating fresco mural painting to the background, will seek to perfect the technique and will toast the interior of the church with intense and vibrant color images, possible by replacing marble with pieces of colored glass . However, this new material does not allow a complex palette of shades and the modeling of the figures loses their contact with the real world, the characters present themselves as transcendental, immaterial beings, inhabitants of a kingdom of light and gold.