A dominant-party system, sometimes known as a one-party system, is a situation in politics when a single political party consistently outperforms rival candidates in elections.
Thus, Option B is correct.
What characteristics distinguish a one-party system?
A one-party system is a style of governance in which a single political party rules the nation; as a result, only one political party exists and the formation of additional political parties is prohibited.
In certain nations, there are numerous political parties, but only one is permitted by law to hold power.
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