Which amendment gives women the right to vote?

The 19th Amendment is significant because it specifically grants women the legal right to vote in the United States. Ratified in 1920, this amendment marked a pivotal moment in the women's suffrage movement after decades of activism and struggle for equality in voting rights. Its passage was a culmination of efforts by countless women and their allies who fought against societal norms and legal barriers that denied them this fundamental democratic right.

In contrast, the 15th Amendment addresses voting rights but focuses on prohibiting the federal and state governments from denying a citizen the right to vote based on "race, color, or previous condition of servitude." The 24th Amendment eliminates poll taxes in federal elections, removing a financial barrier that was often used to disenfranchise voters, particularly African Americans and poorer citizens. The 26th Amendment extends the right to vote to those who are 18 years of age and older, lower the voting age but does not pertain to women's suffrage directly.

Thus, the 19th Amendment is directly responsible for establishing women's right to vote, making it the correct answer for this question.