Answer:
The purpose of the cause-and-effect structure of this passage is:
A) to mark important events in the history of sugar to show how the desire for sugar led to slavery.
C) to reveal that the reason for sugar's low price was slavery.
Step-by-step explanation:
The passage highlights the interconnectedness of sugar production, trade, and slavery. It emphasizes how the demand for sugar led to the enslavement of millions of people and the brutal labor conditions involved in its production. The cause-and-effect structure is used to show the direct link between the desire for sugar and the institution of slavery, while also revealing the underlying reason for sugar's affordability.