What fraction of Canadians live in cities and towns near the Great Lakes and St. Lawrence River?

Discover Canada records this in one direct sentence. The guide writes: More than half the people in Canada live in cities and towns near the Great Lakes and the St. Lawrence River in southern Quebec and Ontario, known as Central Canada and the industrial and manufacturing heartland. The fraction the test wants is therefore more than half (one-half).

Three commitments in one sentence. Discover Canada commits the Great Lakes / St. Lawrence population to THREE specific facts: (1) more than half the people in Canada; (2) live in cities and towns near the Great Lakes and the St. Lawrence River; and (3) in southern Quebec and Ontario, known as Central Canada and the industrial and manufacturing heartland. So Canada's demographic centre of gravity is in the southern Quebec-and-Ontario corridor — where Great Lakes and St. Lawrence geography concentrate population.

The two provinces dominate national geography. Discover Canada commits Central Canada to TWO specific provinces: Quebec AND Ontario. So the more-than-half-of-Canada population is split between these two provinces — the country's two most populous (Ontario at more than 12 million, Quebec at nearly 8 million). Together they hold the great majority of Canadians.

The Central Canada region is also the manufacturing heartland. Discover Canada writes: "Southern Ontario and Quebec have cold winters and warm humid summers. Together, Ontario and Quebec produce more than three-quarters of all Canadian manufactured goods." So the more-than-half-population fact pairs with the more-than-three-quarters-manufacturing fact: most Canadians live in Central Canada, AND most Canadian manufactured goods come from there. The two facts together make Central Canada the demographic AND industrial heart of the country. Other regions named in the guide — Atlantic Canada, the Prairie Provinces, the West Coast, the Northern Territories — together account for the remainder of population and economic activity. The Great Lakes (five lakes between Ontario and the United States) and the St. Lawrence River (running from the Great Lakes to the Atlantic through Quebec) form the geographic anchor of this concentration. So when the test asks the fraction of Canadians in cities and towns near the Great Lakes and St. Lawrence, the source-precise answer is more than half.

The question is testing whether new citizens know the population fraction near the Great Lakes / St. Lawrence corridor. Discover Canada commits to one fraction: more than half. The right test answer matches that.

The wrong answer choices each pick a different fraction. "One-quarter" is too small — the source places more than half. "One-third" is also too small. "Two-thirds" is larger than the source's commitment of more than half but does not cite the same precise wording. Only one-half (more than half) — the source's exact named fraction — matches.