The answers are:
- by quoting Thomas Jefferson's views on the dangers of enslaved Haitians rebelling.
- by describing John Addams's actions to support Haiti in its fight against the French.
- by illustrating Thomas Jefferson's view that the Haitian rebellion could lead to a rebellion of the enslaved in America.
In the excerpt from "Sugar Changed the World," the authors support the claim that American leaders had different stands as regards slavery, which could impact the relations with Haiti. For example, they mention John Addams' assistance to Haiti when they rebelled against the French. They also describe and quote Jefferson's considerations regarding Haiti, and how he believed that could lead to the same revolt in America.