Please answer the following question: Jozef Zych ([juzf zx] born March 23 1938) is a Polish politician of the Polish People's Party. He was Sejm Marshal from 1995 to 1997 (and several times as Senior Marshall).As a Sejm Marshal Zych administered the oath of office for the first term of President Aleksander Kwasniewski in December 1995. 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?
A:
Office Holder