What does the 15th Amendment primarily address in the context of individual rights?

The 15th Amendment primarily addresses the right to vote and explicitly prohibits the federal and state governments from denying a citizen the right to vote based on "race, color, or previous condition of servitude." This amendment was ratified in 1870 as a significant step toward establishing voting rights for African American men following the Civil War. It is integral to the broader context of individual rights because it enforces the principle that the right to participate in the electoral process cannot be infringed upon based on racial discrimination.

The other options, while important rights in their own contexts, do not pertain specifically to the main focus of the 15th Amendment. The right to free speech, alongside the right to bear arms and the right to privacy, are addressed through other amendments and legal doctrines, such as the First and Second Amendments. The concept of due process, while vital, is primarily associated with the 14th Amendment, which deals more broadly with civil liberties and protections against state infringement, rather than the specific voting rights emphasized in the 15th Amendment.