Final answer:
Victorian drama is particularly distinguished by its melodramas, which highlighted moral simplicity and used music and spectacle for emotional effect.
Step-by-step explanation:
Victorian drama is characterized by its rich diversity, but it is truly set apart by the popularity of melodrama. During the 19th century, melodrama was the most prevalent form of theatre. These productions were known for their moral simplicity, with distinct heroes and villains, and an emphasis on spectacle and music to enhance the emotional experience. Melodramas typically presented episodic stories where heroic characters faced off against villainous threats and usually concluded with a happy ending, reinforcing Victorian values.