What are two ways that Americans can participate in their democracy?

The correct answer encompasses a broad range of civic engagement beyond the choice identified. When considering the wider scope of participation in democracy, voting is foundational as it allows citizens to influence government and policies directly. Joining a political party is also significant, as it provides individuals with a platform to align with particular ideologies, work on campaigns, and mobilize like-minded citizens toward collective goals.

However, the other choices highlight equally valid forms of civic engagement. Running for office allows individuals to directly represent their community's interests, while protesting is a traditional method of expressing dissent and advocating for change, showcasing the importance of public demonstration in a democratic society. Writing letters to Congress engages citizens in communication with their representatives, a vital aspect of holding elected officials accountable. Volunteering further emphasizes participation, encouraging civic involvement at a grassroots level.

Each of these options illustrates different avenues through which Americans can engage and influence their democracy, contributing to a vibrant, participatory political culture. Thus, selecting the first option limits the understanding of the myriad ways individuals can exercise their democratic rights.