A “chapter” in a piece of drama is a

Analyze the question: The question asks which part of a play corresponds to a "chapter" in a prose work such as a novel.

Explain the concept: Different literary genres divide their content in different ways:

• Prose (novel): divided into chapters
• Poetry: divided into stanzas or cantos
• Drama: divided into acts, and each act is made up of one or more scenes

Step-by-step solution:

1. Setting is the time and place of the action. It is not a division of the text, so C is out.
2. Dialogue is the conversation between characters. It is not a structural division either, so D is out.
3. That leaves act and scene. A scene is a smaller unit within an act, usually marked by a change of location, time, or the characters on stage. An act is a major division of the play that groups related events together, as a chapter does in a novel.
4. Strictly speaking, a scene is a subdivision, so it is closer to a section within a chapter. An act is the major division that matches a chapter.

Answer: The correct option is A. act.

Exam tip: Remember the hierarchy: Play → Acts → Scenes and Novel → Chapters → Paragraphs. In JAMB, "chapter" matches "act" because both are the major divisions of their genres.