Final answer:
Switzerland is NOT a Francophone nation.
Step-by-step explanation:
Out of the given options, Switzerland is NOT a Francophone nation. Francophone nations are countries where French is widely spoken or recognized as an official language.
France, Canada, and some parts of Belgium are examples of Francophone nations. While French is also spoken in certain regions of Switzerland, it is not one of the official languages of the country.
The United States, although it has a significant French-speaking population, is not considered a Francophone nation.
Learn more about Francophone nations