For centuries, Canada's economy was based mainly on what?

Discover Canada records this in one direct sentence. The guide writes: For centuries Canada's economy was based mainly on farming and on exporting natural resources such as fur, fish and timber, transported by roads, lakes, rivers and canals. The combination the test wants is therefore farming and exporting natural resources.

The named natural resources matter. Discover Canada lists three exports specifically: fur, fish and timber. Each fits with parts of the country's earlier economic geography that the guide describes elsewhere — the fur trade tied to the Hudson's Bay Company and Montreal-based traders; the fish economy tied to the East Coast (where "West Coast natives preserved fish by drying and smoking," and where Cabot first mapped Newfoundland); and timber tied to the inland forests transported by "roads, lakes, rivers and canals."

Industrialisation came later. Discover Canada writes elsewhere that "Canada's economy grew and became more industrialized during the economic boom of the 1890s and early 1900s." So the farming-and-natural-resources description applies to the long pre-industrial era — "for centuries" is the guide's exact phrase — and gives way to industrial growth by the late 19th century.

The financial side of that older economy was relatively young. Discover Canada notes that "the first financial institutions opened in the late 18th and early 19th centuries," and that "the Montreal Stock Exchange opened in 1832." So farming and natural-resource exports came first; the financial system to manage them came afterwards in the 1700s and 1800s.

The question is testing whether new citizens have remembered Discover Canada's exact two-part description of the older Canadian economy. The guide commits to farming and exporting natural resources, with three named exports — fur, fish and timber.

The wrong answer choices each replace the right pair with one that Discover Canada does not use for the country's pre-industrial economy. The guide names fur, fish and timber, not manufacturing, technology, mining, or trade-and-finance, as the centuries-long basis of the Canadian economy.