I believe the correct answer is D. Cowboy songs.
Aaron Copland, American composer, used cowboy songs to highlight
the frontier themes in his ballets “Billy the Kid” and “Rodeo”. Since Copland’s
most important ballets are based on American folk material (Billy the Kid
(1938), Rodeo (1942), and Appalachian Spring (1944)), he used cowboy songs and
American folk songs to contribute to the main themes.
Answer:
Romanticism (also known as the Romantic era) was an artistic, literary, musical and intellectual movement that originated in Europe towards the end of the 18th century, and in most areas was at its peak in the approximate period from 1800 to 1890. And Romanticism is a philosophical movement during the Age of Enlightenment which emphasizes emotional self-awareness as a necessary per-condition to improving society and bettering the human condition.- hope it helps you :)
Explanation:
