Answer the following question: Alireza Zakani (Persian: born 18 July 1965) is an Iranian politician and member of the Parliament of Iran. He announced he will run for presidency in upcoming election on 21 April 2013. However his nomination was rejected by Guardian Council. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Office Holder