Which of the following plays is NOT written by Richard Brinsley Sheridan?

The correct answer, which identifies the play not written by Richard Brinsley Sheridan, is indeed "Mother Courage." This play was authored by Bertolt Brecht, a significant figure in 20th-century theatre known for his contributions to the development of epic theatre and his provocative political themes.

Richard Brinsley Sheridan, on the other hand, is celebrated for his comedic works in the 18th century, particularly for his sharp wit and satirical commentary on society. "The School for Scandal" and "The Critic" are both notable comedies penned by Sheridan, showcasing his skill in dialogue and character development. "A Trip to Scarborough" is also attributed to him and reflects his style of witty repartee and social critique. Understanding the distinct contributions of these playwrights helps clarify the impactful legacy of Sheridan compared to that of Brecht.