How were the ideals of Susan B. Anthony, Elizabeth Cady Stanton, and Sojourner Truth part of the development of the women's suffrage movement?

Elizabeth Cady Stanton (November 12, 1815 October 26, 1902) was an American suffragist, social activist, abolitionist, and leading figure of the early women's rights movement. Her Declaration of Sentiments, presented at the Seneca Falls Convention held in 1848 in Seneca Falls, New York, is often credited with initiating the first organized women's rights and women's suffrage movements in the United States. Stanton was president of the National American Woman Suffrage Association from 1890 until 1892.

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