Final answer:
French composers were notable for featuring ballet in their operas, integrating this art form in the dramatic storytelling of the 17th, 18th, and 19th centuries.
Step-by-step explanation:
Ballet was prominently featured in the operas by French composers. During the 17th, 18th, and 19th centuries, ballet and opera evolved significantly, influenced greatly by the cultural and artistic developments of the time. Ballet, an art form that combines dance and music, became integrated into operas to tell dramatic stories with stylized dance forms. French theatre in the 17th and 18th Centuries, with its neoclassical influences, particularly from Italy, was known to adapt large casts and complex plots into its works, making the incorporation of ballet a fitting choice. Furthermore, composers like Berlioz, who pushed boundaries of the time, were representatives of the French progressive movement in music. Their challenging and innovative compositions further contributed to the distinguished position of French composers in the context of the integration of ballet into operas.