The principal components of opera include arias, recitatives, overtures, and choruses. Each element serves a unique role in conveying the story and emotions of the characters. In this context, choruses are essential for adding depth to the opera's narrative. ;
The principal components of opera include arias, recitatives, overtures, and choruses, with choruses being essential for narrative depth. They add emotional richness and represent collective voices within the opera. Therefore, the correct answer is choruses.
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