c) It states why the topic is relevant to readers.
e) it explains how the authors came to study the subject.
Explanation:
The prologue's conclusion explains why the issue is interesting to readers and how the authors studied it. The writers said they wanted to know how sugar impacted the planet. They say sugar has caused ruin and spawned liberating ideals.
Sugar has shaped the world as we know it, say the authors. By detailing sugar's history, they hope readers will comprehend how it has shaped our world.
