The four constitutional amendments passed during the Progressive Era, 1900 through 1920, included amendments dealing with which of the following pairs of issues?

While the 16th Amendment established a federal income tax, there is no constitutional amendment that enforces a two-term limit for the presidency. Instead, the 22nd Amendment, which limits presidents to two terms, was ratified later in 1951. Thus, this choice does not correctly represent the amendments passed during the Progressive Era.

The 17th Amendment, which allows for the direct election of senators, was indeed ratified during the Progressive Era. However, the 25th Amendment, which deals with presidential death and disability, was ratified in 1967, long after the Progressive Era. Therefore, this option is incorrect as it mixes amendments from different time periods.

The 14th and 15th Amendments, which addressed citizenship and voting rights for former slaves, were ratified during the Reconstruction Era, not the Progressive Era. The Progressive Era amendments focused on different social issues, making this choice inaccurate.