Identify the three boxing paintings made in the first decade of the twentieth century.
A) "Stag at Sharkey's," "Dempsey and Firpo," "Both Members of This Club"
B) "Nighthawks," "American Gothic," "Christina's World"
C) "The Dance," "Three Musicians," "Guernica"
D) "Mona Lisa," "The Starry Night," "The Persistence of Memory"