Jane Addams was most active in which of the following organizations?

While Addams supported women's suffrage, her primary focus was on social reform and immigrant rights through Hull House. The National American Woman Suffrage Association was more centered on the political struggle for women's voting rights, which was not Addams' main area of activism.

The United Farm Workers organization, founded in the 1960s, aimed to empower farm laborers through unionization and labor rights advocacy. Jane Addams’ work was primarily in the late 19th and early 20th centuries, making her involvement in this organization historically impossible.

The National Organization for Women was established in 1966, long after Addams' most active years. While she championed women's issues, the organization itself did not exist during her lifetime, thus she could not have been involved.

Although Addams had sympathies towards labor movements, the Industrial Workers of the World focused on radical labor organizing and direct action, which was not the approach she advocated. Her strategies were more aligned with social reform through education and community service rather than labor activism.