What is the capital of Canada?

Ottawa is the capital city of Canada, serving as the center of the country's government and political activities. It is located in the province of Ontario, along the Ottawa River, and is home to key national institutions such as Parliament Hill, which houses the Parliament of Canada. The city's designation as the capital distinguishes it from other major Canadian cities like Toronto, Vancouver, and Montreal, which, while significant in their own right, serve different roles and are not the seat of national government.

Toronto is Canada's largest city and an economic hub, Vancouver is known for its stunning natural landscapes and cultural diversity, and Montreal is recognized for its unique blend of French and English influences. However, it is Ottawa that fulfills the specific function of being the political heart of the nation. This makes Ottawa the correct answer, reflecting the formal structure of Canada’s governance and the historical reasons behind its selection as the capital.