Which one of these amendments also pertains to suffrage?

The 19th Amendment is significant because it granted women the legal right to vote in the United States, marking a crucial moment in the suffrage movement. Ratified in 1920, this amendment ensured that voting rights could not be denied on the basis of sex, thus expanding democratic participation and promoting gender equality in the electoral process. The passage of the 19th Amendment was the culmination of decades of activism by suffragists, and it represented a major victory in the long struggle to secure equal voting rights for all citizens.