Which amendment restricts the President to two terms?

The 22nd Amendment to the United States Constitution is the one that restricts the President to two terms in office. Ratified in 1951, this amendment was a response to Franklin D. Roosevelt's four-term presidency, which led to concerns about the concentration of power and the potential for an extended tenure in office. The amendment clearly states that no person can be elected to the office of the President more than twice.

This provision aims to maintain a balance of power within the federal government and ensure regular opportunities for leadership change, thereby reinforcing the democratic principle of electoral accountability. The other choices pertain to different aspects of electoral processes and civil rights: the 20th Amendment deals with the terms of office for Congress and the President, while the 24th Amendment prohibits poll taxes in federal elections, and the 26th Amendment lowers the voting age to 18. Each of these amendments has its own significance, but they do not address presidential term limits as the 22nd Amendment does.