Who introduced responsible government in United Canada in 1848-49?

Discover Canada records this in one direct sentence. The guide writes: In 1848–49 the governor of United Canada, Lord Elgin, with encouragement from London, introduced responsible government. The man the test wants is the only one named with this title and date pairing: Lord Elgin.

The political moment matters. Discover Canada sets it in the wake of the failed 1837–38 rebellions and the report by Lord Durham, who had been sent "to report on the rebellions" and "recommended that Upper and Lower Canada be merged and given responsible government." The merger came first, in 1840, when "Upper and Lower Canada were united as the Province of Canada." Then, eight or nine years later — 1848–1849 — Lord Elgin, as governor, took the second step that Durham had urged.

Discover Canada defines what was introduced in the same paragraph. The guide writes that under responsible government "if the government loses a confidence vote in the assembly it must resign," and calls this "the system that we have today." So Lord Elgin's role is foundational: he is the colonial governor under whom modern Canadian parliamentary accountability went into effect.

The first elected leader of that responsible government was Sir Louis-Hippolyte La Fontaine, described by the guide as "a champion of democracy and French language rights." Fellow reformers Robert Baldwin in the Canadas and Joseph Howe in Nova Scotia worked alongside the new system. But the introducer — the answer to this test question — is Lord Elgin.

The question is testing whether new citizens can match a specific role (introducer of responsible government) with a specific name. Discover Canada distinguishes carefully between the colonial governor who introduced the system (Lord Elgin), the first elected leader who led it (La Fontaine), and the reformers who pushed for it (Robert Baldwin in the Canadas, Joseph Howe in Nova Scotia).

The four answer choices each appear in Discover Canada's description of this period, which is why the question is harder than it looks at first. Mixing them up — picking the first elected leader instead of the introducing governor — is the natural mistake the test is checking for.