Question: W. Donald Cousens (born July 20 1938) is a politician in Ontario Canada. He was a Progressive Conservative member of the Legislative Assembly of Ontario from 1981 to 1994 and briefly served as a cabinet minister in the government of Frank Miller. From 1994 to 2006 Cousens served as the Mayor of Markham Ontario. 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