What are the principle of art in this painting?​

I'll mark brainliest, i need this answered very ! what happens when there is a transfer of artwork using a grid? a. acts to verify the analysis of the composition b. the viewer's eye adjust to unity c. unify the composition d. none of the above

What is the title of the work below? a. the old sacristy b. the new sacristy c. tomb of popes d. pieta

What is a system which kings rulers and other wealthy individuals provided financial and other support to artists? feudalism commissions partronage all of the above !