In which type of system would you find representatives elected from regions called ridings?

The choice highlighting the parliamentary system is correct because this type of governance typically involves representatives being elected from specific geographic areas known as ridings or electoral districts. In a parliamentary system, citizens vote for their local representatives, who then represent their interests in the legislature. This system emphasizes the parliamentary structure, where the government is accountable to the elected body, and the Prime Minister is usually a member of the legislature.

In contrast, a direct democracy allows citizens to vote on policies and laws directly rather than through elected representatives, making ridings unnecessary. A presidential system operates differently, as it separates the executive branch from the legislative branch, and while elections occur, the focus is on electing a president rather than regional representatives operating within an elected assembly. Lastly, an authoritarian regime typically consolidates power in a single entity or individual, often restricting or completely eliminating the democratic process of electing representatives from regions, thereby bypassing the concept of ridings altogether.