Which of the following occurs when one party replaces another party that has dominated
National politics for a lengthy period of time?

A) an electoral realignment
B) proportional representation
C) divided party government
D) external mobilization

Electoral Realignment

A significant change in the political system of a country, often characterized by a shift in the popular support of political parties and reconfiguration of coalitions.

Proportional Representation

An electoral system in which parties gain seats in proportion to the number of votes cast for them.

National Politics

The activities, actions, and policies that are related to the governance of a nation or country.