Which of the following amendments allows for electoral votes for Washington D.C.?

The Twenty-Third Amendment to the United States Constitution specifically provides for the allocation of electoral votes to the District of Columbia. Ratified in 1961, this amendment allows residents of Washington D.C. to participate in presidential elections by granting them a number of electoral votes equal to that of the least populous state, which is currently three electoral votes. This important change was aimed at ensuring that citizens living in the nation's capital could have a say in the selection of the President, despite not having representation in Congress.

The other amendments listed do not pertain to electoral votes for Washington D.C. The Twenty-Sixth Amendment lowers the voting age to 18, the Twenty-Seventh Amendment deals with congressional pay increases, and the Twenty-Fifth Amendment outlines presidential succession and disability arrangements. Understanding the specifics of each amendment helps clarify their significance in the context of U.S. electoral processes and civil rights.