Which of the following is one notable achievement of Benjamin Franklin?

Benjamin Franklin is particularly recognized as a significant U.S. diplomat, which stands out as one of his most notable achievements. His diplomatic efforts were crucial during the American Revolution, especially his role in securing French support for the colonies. Franklin served as the American ambassador to France, where he worked tirelessly to gain military and financial assistance, directly contributing to the success of the American independence movement.

His diplomatic skills and ability to cultivate relationships helped solidify alliances that were vital for the American cause. Franklin's correspondence and negotiations helped to establish the Treaty of Paris in 1783, which formally ended the Revolutionary War and recognized the independence of the United States.

While he also had a role in other historical contexts, such as being a signer of the Declaration of Independence and influencing the development of the Constitution, it is his diplomatic influence and achievements that are particularly notable and distinguished in American history.