I want to know the answer to the following question:
How many cantons are in Switzerland's federal directorial republic?
All the background I'm provided with is that "While the Alps occupy the greater part of the territory, the Swiss population of approximately 8 million people is concentrated mostly on the Plateau, where the largest cities are to be found: among them are the two global and economic centres, Zürich and Geneva.". Is that enough to answer the question?