Answer:
c) Through the use of major key and triumphant themes
Step-by-step explanation:
In Beethoven's Symphony No. 5, the music tells us that his struggle was resolved through the use of a major key and triumphant themes. The symphony is famous for its dramatic journey from the initial four-note motif (short-short-short-long) in a minor key to a triumphant and powerful major key conclusion in the final movement. This shift from minor to major, along with the development of triumphant and heroic themes, conveys a sense of resolution and triumph over adversity, reflecting Beethoven's personal struggle and ultimate triumph.