Which sentence uses commas correctly? A. Lincoln served in the House of Representatives, but he was never elected to the Senate. B. Are you familiar with the Emancipation Proclamation or, do you know the Gettysburg Address better? C. Abraham Lincoln was born, in 1809 and he was assassinated in 1865. D. Lincoln was elected president in 1861, and, his election helped spur the secession of the American South.