Which of the following composers is recognized as a prominent figure of the Classical period?

The recognition of Wolfgang Amadeus Mozart as a prominent figure of the Classical period stems from his profound influence on the music of his time and the lasting impact he has had on Western classical music. Mozart's compositions exemplify the characteristics of Classical music, which emphasized clarity, balance, and form. His works, ranging from symphonies and operas to chamber music and piano concertos, showcase a mastery of melody and harmony that defined the era.

While Beethoven is often associated with the transition into the Romantic period, his early works were rooted in classical forms. Johann Sebastian Bach, on the other hand, was a principal figure of the Baroque period, known for his complex counterpoint and rich harmonic structures, which are distinct from the Classical style. Franz Joseph Haydn is another key composer of the Classical period who contributed significantly to the development of sonata form and symphonic structure; however, Mozart's influence, innovation, and the extent of his output position him as perhaps the most exemplary figure of the Classical music tradition.