The correct answer is Paris, the capital and largest city of France, situated on the Seine river in the north-central part of the country. Paris has served as the political, administrative and cultural centre of France for centuries and today hosts the French Presidency, the National Assembly, the Senate and most major foreign embassies, making it the undisputed seat of national governance. Its status as capital is not a recent designation but stems from its long historical role as the seat of French monarchs and, after the Revolution of 1789, of successive republics and administrations, cementing its administrative primacy over rival cities. Lyon, the third-largest city, is an important commercial and industrial hub in east-central France, historically significant for the silk trade and now for finance and technology, but it has never functioned as the national capital. Marseille, France's second-largest city and its oldest, is the country's principal Mediterranean port and a major centre of trade and shipping, yet it too lacks any capital function; it is often confused with the capital by students because of its size and historic importance. Nice, a smaller coastal city on the French Riviera, is chiefly known for tourism and its Mediterranean climate rather than governance, and its inclusion here tests whether candidates rely on famous-city recognition instead of accurate factual knowledge. A common exam confusion arises because Marseille and Lyon are larger in some economic indicators than several European capitals, leading weaker students to assume size determines capital status. The safe revision takeaway is to memorise capital cities strictly as designated seats of government, independent of population or commercial rank, and to specifically note that Paris has held this administrative and symbolic role continuously through France's modern political history, from monarchy through republic to the present Fifth Republic.