How can collections of art record changes in art or culture?

Ineed 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

List as many characteristics as you can to describe each style realism and propaganda

In a paragraph of no less than 125 words, explain the single most important factor involved in advancing american classical music in the twentieth century.