The correct answer is plot. Theme is the work's main idea (the "why" of the work), and there usually are more themes in a single work. Narrator is the "I" of the story, someone who tells it. The setting is the "when and where" of the story, the time-place frame. The plot is the "what" - what happens.
Exposition, the beginning of the fairy tale<span> is called exposition.</span>
Answer:
"In this case, as many as 20,000 skilled laborers worked to built the pyramids. Tens of thousands of workers required enormous resources…"
Explanation: