What is the maximum number of years a President can serve in office?

A President of the United States can serve a maximum of two terms, which totals eight years in office. This limit is established by the 22nd Amendment to the Constitution, ratified in 1951. The amendment was enacted in response to Franklin D. Roosevelt's four-term presidency, aiming to prevent any future president from holding the office for more than eight years.

While a President can technically serve up to ten years if they were to assume office in the middle of a term (for instance, if a vice president ascends to the presidency due to the incumbent's death or resignation and then is elected for two full terms), this scenario is uncommon. However, the standard and widely recognized limit remains eight years. Thus, the maximum number of years a President can serve in office is eight, making this option the correct answer.