There was the Yankee–Pennamite Wars that happened in this time period. But because the question is broad, technically asking for any event between the dates of January 9th 1788 through May 29th 1790, so I don't think anyone can say for sure.
Some of the reasons why French people in Canada did not want Confederation because they believed that they might lose their rights and language. They believed that if Confederation occurred, a central government will cause the powers of the provinces to be weakened.
The battle of Trenton was fought in 1776 so the correct answer would be A.
An alliance that was formed with France included a pledge of military support when the time came and it was needed against Australia which was Italy's main difficulty in unifying Italy. <span />