The correct answer is B) a symbol of American domination of the post-World War 1 world.
With its original sound created from a variety of musical styles, jazz became a symbol of American domination of the post-World War 1 world.
One of the best artistic movements that impacted the United States in the post-World War 1 era was Jazz Music. This great African American rhythm has its origins in the poor black communities of New Orleans. It was influenced by other important black music styles such as ragtime and the blues. Its expansion across the country in the 1920s made Jazz music a classical favorite for the American people, and many Jazz artists traveled Europe with success.
The other options of the question were A) a caus of new divisions between white and black Americans. C) a demonstration of the depth and richness of the American culture.