Not 100% sure, but I think its D.
The League of Nations was considere weak becaus
A report aboout the history of voting rights in America.
Suffrage is the right to vote in any election for a public office and for a long time women weren't allowed this right, thus the suffrage parades being held to finally attain the right.
Answer:
Popular Sovereignty
Explanation:
The Progressive Era was a period of social activism and political reform in which many civilians participated (direct democracy) in order to reform the vertical (hierarchy) political system. Among the targets were the political machines with their corrupt and malfunctioning representatives.
Popular Sovereignty, that dates back to the Enlightenment, is the purest of (and most horizontal) democratic government, in the sense that the goverment´s purpose should be to protect (the civil rights) and serve the people, and not the other way around. And if they fail to do, or are corrupt or both, so they should be replaced.
