Lacrosse is Canada's national summer sport.

Discover Canada records this in one direct sentence about Canadian sport. The guide writes: Lacrosse, an ancient sport first played by Aboriginals, is the official summer sport. Soccer has the most registered players of any game in Canada. The status the test wants is therefore true — lacrosse is Canada's official summer sport.

Three precise commitments. Discover Canada commits lacrosse to THREE specific facts: (1) it is an ancient sport; (2) it was first played by Aboriginals; (3) it is the official summer sport. So the source pinpoints both the historical-Aboriginal origin and the named summer-sport status.

Lacrosse is paired with hockey as Canada's two named national sports. Discover Canada commits Canada's official sports to TWO seasons. Lacrosse is the named summer sport. Hockey is named earlier as "Canada's most popular spectator sport and is considered to be the national winter sport." So Canada has TWO named national sports — one for each major season.

The Aboriginal origin matters. Discover Canada commits lacrosse's named origin to "first played by Aboriginals" — meaning lacrosse is one of the few major sports with a clearly heritage rooted in Canada's Aboriginal peoples that became a national symbol. The wider sporting context: "Soccer has the most registered players of any game in Canada" — meaning soccer is popular in participation, but the named national summer sport is lacrosse. Other named Canadian sports include Canadian football — the second-most-popular sport — and curling, the ice game introduced by Scottish pioneers. The named hockey-and-lacrosse pairing reflects Canada's geographic and cultural reality: a winter game on ice and a summer game on grass, with both having deep Canadian roots — hockey developed in Canada in the 1800s, lacrosse traced back to Aboriginal play before European arrival. So when the test asks whether lacrosse is Canada's national summer sport, the source-precise answer is true.

The question is testing whether new citizens know Canada's national summer sport. Discover Canada commits to one named summer sport: lacrosse. The right test answer matches that — true.

The wrong answer ("False") reverses the source — lacrosse IS Canada's named official summer sport. Only the true answer matches the source.