Istvan Tiba - Dr. Istvan Tiba (born 6 May 1962) is a Hungarian dentist and politician member of the National Assembly (MP) for Balmazujvaros (Hajdu-Bihar County Constituency VIII) from 2002 to 2006 and since 2010. He was also MP from the county regional list of Fidesz between 2008 and 2010. He was elected mayor of Balmazujvaros during the local elections held in 2006. 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