<span>The French term<u> avant-garde</u> is usually reserved for artists or artworks that challenge existing conventions of art. The individual or works have a tendency to be radical, revolutionary, and/or unconventional in regard to art, culture, and society.</span>
Art is just like any other primary source as it shows what happened in that time era, what everything looked like, how people dressed and so on
Medium.
If there is more than one medium the piece is referred to as mixed media.
The answer is C. Thomas Eakins
