F. Scott Fitzgerald was named after his ancestor who wrote "The Star-Spangled Banner." What is the ancestor's full name?

The correct choice is Francis Scott Key. He is the ancestor of F. Scott Fitzgerald and is best known for composing the lyrics to "The Star-Spangled Banner," which is the national anthem of the United States. Key was a lawyer and a poet, and his work penned during the War of 1812 has had a lasting impact on American culture. F. Scott Fitzgerald chose to honor his ancestor by adopting his name, thereby connecting his literary legacy to a symbol of American pride and resilience.

The other names listed do not share this connection; for example, Francis Scott Fitzgerald is simply the name of the author himself, while Francis Scott Adams and Francis Scott Wright do not have the historical significance or connection to "The Star-Spangled Banner."