During the Classical era, the prevalent form of opera, which contained many recitatives and arias designed to display virtuosity, was called: a. opera buffa. b. Singspiel. c. opera seria. d. opéra comique.

c. opera seria

Explanation:

At the time of the classical period, the prevalent form of the opera which consists of many forms of the recitatives and arias that are designed to display the atrocity. It is usually called a drama or a musical term that refers to the noble and "serious" style of the opera that is predominant in Europe during the 1710s to about 1770 and was not produced only in Italy but in other parts of the Europe.

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