Answer:
B
Step-by-step explanation:
The purpose of this passage is to link the family history of the authors to sugar and bring the exploration and production of sugar to a human level by explaining the everyday effects of the massive and long-reaching sugar industry in its early days.
The passage is an introduction to a thorough and in-depth description of the human movements, the heartbreak, the suffering, and the interactions behind the sugar trade and how they relate to the narrative told by two authors whose families were deeply involved in that activity.