Between 1945 and 1970, Canada experienced one of the strongest economies because of what?

Discover Canada records this in one direct sentence. The guide writes: Between 1945 and 1970, as Canada drew closer to the United States and other trading partners, the country enjoyed one of the strongest economies among industrialized nations. The driver the test wants is therefore strengthened ties with the U.S. and other trading partners.

The phrase commits to a clear cause-and-effect. Discover Canada's wording — "as Canada drew closer to the United States and other trading partners" — frames trade integration as the reason for the economic strength. So the post-war prosperity wasn't an accidental phenomenon; it was tied to deliberate choices about international trade and economic engagement.

Several specific events anchor this period. Discover Canada notes "the discovery of oil in Alberta in 1947 began Canada's modern energy industry," the GATT/WTO trade framework opened up international trade, and "in 1951, for the first time, a majority of Canadians were able to afford adequate food, shelter and clothing." So the 1945-1970 prosperity period saw oil discovery, post-war trade liberalisation, broad rises in living standards, and steady integration with the U.S. economy.

The U.S. partnership remains foundational. Discover Canada writes that "Canada enjoys close relations with the United States and each is the other's largest trading partner. Over three-quarters of Canadian exports are destined for the U.S.A." So the 1945-1970 trend that the question is testing has continued. Today Canada has "one of the ten largest economies in the world" and is in the G8 alongside the U.S., Germany, the United Kingdom, Italy, France, Japan, and Russia. The 1988 Canada-U.S. free trade agreement and the 1994 NAFTA expansion are continuations of this 1945-1970 trajectory.

The question is testing whether new citizens know what made Canada's 1945-1970 economy among the strongest. Discover Canada commits to one cause: strengthened ties with the U.S. and other trading partners. The right test answer matches that.

The wrong answer choices each pick a different cause. "Government subsidies" is not the cause named in the guide. "Domestic isolation" is the opposite of what the source describes. "Oil discovery in Quebec" misidentifies the location — the 1947 oil discovery was in Alberta, not Quebec. Only the strengthened-trade-ties answer matches.