The correct answer is D) the introduction of measures of direct democracy at the local and state level.
You forgot to include the newspaper. Without that reference, it is not possible to know what are you talking about.
However, doing some deep research we can say the following.
The newspaper headline on the left describes a significant event in domestic affairs. The set of progressive reforms that is illustrated by this article is "the introduction of measures of direct democracy at the local and state level."
During the Progressive era in the United States, some reformations allowed the American people to have democratic representation via elections. This could be possible because, in some states, the government created legislation to allow people to direct voting on primary elections. This facilitated the active participation of citizens in the election process, influencing state politics.
Another great moment for US politics was the passing of the 17th Amendment to the United States Constitution that authorized the popular vote to elect the Senators.
