Florida Civics EOC Practice Test 2025 - Free Civics EOC Practice Questions and Study Guide.

The two main political parties in the U.S. are Democrats and Republicans. Option B, Communist and Libertarian, are not the two main parties as they are considered more extreme and do not have as strong of a presence in U.S. politics. Option C, Socialist and Green, also do not make up the two main parties as they are considered smaller and more niche parties rather than major ones. Option D, Liberal and Conservative, are ideologies rather than political parties, and while they may align more with one party or the other, they are not exclusive to either Democrats or Republicans.