GRE Reading Comprehension: Manhatton-GRE阅读Manhatton - C2518F0AOP6565H6A$

The author mentions the mixing of "traditions of moralism with those of comedy" primarily in order to A. explain a work's lackluster reception among a particular group of people B. remind the reader of the plot of Don Giovanni C. highlight a practice common in contemporary opera D. argue for an innovative approach to opera E. undermine a previously presented assertion