Why did Progressives work to disrupt or disable political machines? They were largely responsible for inefficiencies and accidents in meat-packing plants.
They resulted in worker dissatisfaction and discomfort because of their emphasis on rules.
They interfered with efforts to hold government officials accountable to constituents.
They encouraged elected officials to seek input and feedback from individual voters.

Anwer will be: They have interfered with efforts to hold government officials to account to constituents.

Explanation:

Before that the dismantling of the political machines, that the elected politician would they are usually just want to make life better for the ones who elected them.  And many times, not so even that. In a political machine, there is a so-called party whip structure with the boss or they have a few autocrats at the top. so that Only it was important and nothing more. the main object of the Progressive movement was addressing problems caused by industrialization, urbanization, immigration, and political corruption. Thus, the Social reformers were primarily middle-class citizens who were targeted political machines and their bosses.

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The answer is d.  the north had organized schools, whereas the south had few organized schools.