Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Mongi Hamdi - Mongi Hamdi (born 23 April 1959) is a UN official who has been appointed as the interim foreign minister of Tunisia by Prime Minister Mehdi Jomaa.
A:
Office Holder