What is the primary role of minor political parties?

The primary role of minor political parties is indeed to introduce new issues and challenge major parties. Minor parties often emerge to advocate for specific interests or concerns that may be overlooked by the dominant political entities. By presenting alternative viewpoints or proposing innovative solutions, these parties can influence the political discourse and bring attention to issues that need to be addressed.

Furthermore, minor parties play a crucial role in encouraging major parties to respond to emerging trends and voter sentiments. Their presence can shift the agendas of major parties, pushing them to adopt new policies or rethink their positions to appeal to a broader electorate. This dynamic helps create a more vibrant and representative political landscape.

The other options suggest roles that do not accurately reflect the function of minor parties. Domination of the political landscape is typically characteristic of major parties, while supporting major parties exclusively does not align with the independent nature and objectives of minor parties. Unifying voters under a single ideology also tends not to be a primary aim, as minor parties generally seek to represent diverse perspectives rather than consolidate all voters into one ideological camp.