Which amendment granted women the right to vote in the United States?

The 19th Amendment is significant as it explicitly granted women the right to vote in the United States. Ratified in 1920, this amendment marked a critical victory in the women's suffrage movement, which fought for decades to secure voting rights for women. This amendment represents a pivotal moment in American history, as it expanded democracy by recognizing the voting rights of women, thereby promoting gender equality in the political arena.

Other amendments listed do not pertain to women's voting rights. The 15th Amendment, for instance, addresses voting rights related to race, prohibiting the denial of the right to vote based on race, color, or previous condition of servitude but does not include gender. The 24th Amendment abolished poll taxes in federal elections, removing a financial barrier to voting but again focusing on race and economic status. The 26th Amendment lowered the voting age to 18 years, and while it expanded suffrage, it did not specifically address women's voting rights. Thus, the 19th Amendment is the only option that directly pertains to granting women the right to vote.