Please answer the following question: Abraham Lincoln and slavery - Abraham Lincoln's position on slavery was one of the central issues in American history.Lincoln often expressed moral opposition to slavery in public and private.Initially he expected to bring about the eventual extinction of slavery by stopping its further expansion into any U.S. territory and by proposing compensated emancipation (an offer Congress applied to Washington D.C.) in his early presidency. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Office Holder