The correct answer is B) Exploitation of a weaker nation.
The author implies that a Northern confederacy would most likely engage in the following kind of activity: "Exploitation of a weaker nation."
We are referring to The Federalist Paper No. 5, of November 10, 1787. In it, politician John Jay discusses the potential effects of dividing the U.S. into several different nations. Under the pseudonym of "Publius," Jay titled this document "The Same Subject Continued: Concerning Dangers from Foreign Influence." The document refers to the risks of foreign military influences.
