n September 22, the president announced that slaves in areas still in rebellion within 100 days would be free. On January 1, 1863, Lincoln issued the final Emancipation Proclamation, which declared “that all persons held as slaves” within the rebel states “are, and henceforward shall be free.
On and a are the correct answers
logos is using logic so it could be that, and ethos is using a character or tries to convince you of its credibility so that is another option. Decide if their trying to appeal to credibility or if the statistic is more important.