Which artwork has these characteristics

What convetion did chardin and delacroix use in the painting grace before meal and liberty leading the people to give the artworks a sense of harmony and stability?

Was prevalent in art in northwestern europe during the middle ages? a. geometric motifs b. abstraction c. pointillism d. animal style

Which of the following pieces of art would be considered a form of social protest? a. washington crossing the delaware c. guernica b. napoleon in the plague house at jaffa d. philip iv on horseback