Sugar changed the world showing the impact of sugar on culture. The purpose of the passage was to tell the readers about the family history that spurred their research interest. Thus, option D is correct.
A prologue is a section that appears at the beginning of a story and provides readers with details about the background story that informs them about the sugar that intrigued their interest.
The global impact of sugar is expressed in the prologue of the story which details the readers about the topic matter. The production's history and its connection to slavery are depicted.
Hence, the connection between the sugar research history is expressed.
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