Which amendment is associated with women's suffrage, a cause championed by Susan B. Anthony?

The amendment associated with women's suffrage and championed by Susan B. Anthony is the 19th Amendment. This amendment, ratified in 1920, granted women the legal right to vote in the United States. It was the culmination of a long fight for women’s rights led by many activists, including Susan B. Anthony, who played a pivotal role in the suffrage movement.

Anthony's efforts and those of her contemporaries were focused on the necessity for women to have the same voting rights as men, emphasizing equality in the democratic process. The ratification of the 19th Amendment marked a significant milestone in the struggle for gender equality and represented the recognition of women's contributions to society, especially in the political arena.

The other amendments listed do not pertain to women's suffrage. The 15th Amendment, for example, addresses voting rights irrespective of race, color, or previous condition of servitude, which does not include gender. The 21st Amendment repeals Prohibition, and the 13th Amendment abolishes slavery, neither of which relates to voting rights for women. Thus, the 19th Amendment rightly is distinguished as the significant legislative change that aligns with the women's suffrage movement led by figures like Susan B. Anthony