What does the 15th Amendment state regarding voting rights?

The 15th Amendment, ratified in 1870, explicitly states that citizens cannot be denied the right to vote on account of race, color, or previous condition of servitude. This legal protection was a significant milestone in the fight for civil rights in the United States, aiming to ensure that the newly freed African American men had the right to participate in the electoral process after the Civil War.

The other options do not pertain to the text or intent of the 15th Amendment. The restriction on voting based on age is addressed by different amendments, and women's voting rights were not covered by the 15th Amendment but rather by the 19th Amendment, which was ratified in 1920. Additionally, the idea that only landowners could vote reflects historical practices prior to the expansion of suffrage and is not related to the protections set forth in the 15th Amendment. Hence, the assertion of protecting voting rights regardless of race or color is the core principle established by this amendment.