Answer:
E. Copland.
Explanation:
Aaron Copland was one of the best composers of America in 20th century. He was referred as "Dean of American Composer." He made a deliberate appeal to common people by rejecting radical dissonance and atonality, working instead on a series of projects based on rural and Western American ideas. His musical style is characterized by the use of folk songs and popular elements, tonal harmony, and a clear, luminous orchestration.