What is the oldest U.S. Navy ship still in commission?

The USS Constitution holds the title of the oldest U.S. Navy ship still in commission. Launched in 1797, it is one of the few remaining examples of the original wooden-hulled ships built during the early years of the Navy. The Constitution is often referred to as "Old Ironsides" because of its strong oak construction and ability to withstand cannon fire during the War of 1812.

This ship is not only a significant part of naval history, but it also serves as a symbol of the United States' early maritime heritage and its naval prowess. The USS Constitution is preserved in Boston and continues to be manned by a crew that keeps it ready to sail, showcasing its historical importance in naval tradition and culture.

While other ships mentioned in the options may also have notable histories, none can claim the longevity in active commission status as the Constitution. The other ships served significant roles at various points in history but do not surpass the age and ongoing service of the Constitution.