Answer:
C. His style was electric, he sought inspiration from American music of all kinds.
Step-by-step explanation:
First of all, Aaron Colplan musical contributions were more focused on American classical music. He sought inspiration mostly on Jazz, so it is not true that his style was electric like other genres. Additionally, the other options are true. Copaland was one of many composers who thought on that time that music should be composed for intellectuals and not for the people; He also studied in Europe with Nadia Boulanger in Paris, who was a great influence for him as well; and, finally, He believed on the potential of American music and how it will eventually be more famous than other popular genres from other countries. He was indeed a promoter of American music.