Ulysses S.Grant
He was the final commander of the union Army
France was the country that sold the United States the Louisiana territory, so they could have just said "no you can't have our land."
However, determining the precise beginning and ending to any "period" is often arbitrary, since it has changed over time over the course of history.
C is your answer. @NeedhelpmuchEvent @Crystal126
Allies and aides I think those are good
