What was the architectural device that was a clear technical advance over the device used by the Greeks?

The three lowest levels of thinking, according to blooms taxonomy, are

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

This brooch contains a miniature picture of american statesman henry clay. likely owned by clay or his ancestors, this brooch is valued for what reason? a. scholastic value b. provenance c. cultural heritage d. market value pls hurry and you