What kind of speech typically involves two or more characters exchanging dialogue?

The correct choice is the one that defines a form of speech where two or more characters engage in conversation through spoken lines. In this context, dialogue is characterized by its interactive nature, as it allows characters to express their thoughts, emotions, and motivations in a manner that facilitates interaction and storytelling. This direct exchange helps to develop the plot, reveal character dynamics, and enhance the overall narrative.

In contrast, a monologue refers to a single character speaking at length, often revealing their inner thoughts without the back-and-forth interaction typical of dialogue. A soliloquy is similar in that it is a speech by a character who is alone on stage, expressing their thoughts aloud for the audience, but it does not involve conversation. A prologue, on the other hand, serves as an introductory section to a story, outlining background information or setting the stage for the main narrative, but it does not consist of dialogue between characters. This distinction highlights why dialogue is the appropriate term for speech that involves exchanges among characters.