Answer:
(a) One key goal of the People's Party (Populist Party) in the 1890s was to represent the interests of farmers and laborers who were facing economic challenges, including low crop prices, high debts, and unemployment.
(b) One reason for the emergence of the People's Party (Populist Party) in the 1890s was the economic crisis that affected farmers and laborers, particularly in rural areas. The party emerged as a response to the perceived failure of the two major parties, the Democrats and the Republicans, to address the needs of these groups.
(c) One key historical similarity between the People's Party (Populist Party) in the 1890s and Jacksonian Democrats in the 1820s and 1830s was their focus on the needs of the "common man" and their opposition to concentrated economic and political power. Both parties sought to represent the interests of farmers and laborers who felt marginalized by the elites. However, a key difference is that the Jacksonian Democrats had a greater emphasis on expanding democracy, while the Populists were more focused on economic issues and reforming the financial system.