Leonardo da vince's technique of sfumato allows painter to:
a. place mpre than one vanishing point on a single canvas
b. communicate emotion to the viewer
c. create art using quick-drying paints
d. outline forms in a realistic manner

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