Final answer:
The "Star Spangled Banner" became the U.S. National Anthem in 1931, inspired by the British bombardment of Baltimore in 1814. None of the options provided in the multiple-choice answer correctly reflects the year it was officially designated as the anthem.
Step-by-step explanation:
The "Star Spangled Banner" became the National Anthem of the United States on March 3, 1931. It was inspired by the events surrounding the British bombardment of Baltimore during the War of 1812, specifically the defense of Fort McHenry. Francis Scott Key wrote the poem "In Defense of Fort McHenry" in 1814, which was later set to the melody of a British song and became known as "The Star-Spangled Banner." On none of the options provided in the question, namely a) 1814, b) 1776, c) 1865, d) 1789, reflects the accurate year when it was officially designated as the anthem. Therefore, the correct answer is not listed, but to associate the anthem with an historical event, the British bombardment of Baltimore (option B) is connected to the inspiration for the song.