Final answer:
Local party organizations are most active before an election and A. during state conventions.
Step-by-step explanation:
The local party organizations are most active during certain periods of the political process. They are most active before an election, as they engage in campaign mobilization efforts, candidate recruitment, and fundraising. They are also active during state conventions, where delegates from county organizations come together to discuss the needs of their areas and select delegates for the national convention. However, it's important to note that local party organizations are consistently involved in supporting party candidates and coordinating party activities between elections as well.