Q:Alexander Mackenzie Stuart Baron Mackenzie-Stuart - Alexander John Mackenzie Stuart Baron Mackenzie-Stuart (18 November 1924 1 April 2000) was a Scottish advocate and judge. He was the first judge from a United Kingdom jurisdiction to sit on the European Court of Justice in Luxembourg later becoming its President. 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