Answer:
A. Cival War-ending slavery
Explanation:
Walt Whitman created the poem "O Captain! My Captain!" after Abraham Lincoln's death in 1865. The lyric is named a funeral poem or grieving lyric and was composed to respect Abraham Lincoln, the sixteenth leader of the United States. Walt Whitman was conceived in 1819 and passed on in 1892, and the American Civil War was the focal occasion of his life. Whitman was a staunch Unionist during the Civil War. He was at first not interested in Lincoln, however as the war went ahead, Whitman came to cherish the president, however the two men never met.
