Please answer the following question: Serge Joyal PC OC OQ (born February 1 1945) is a Canadian Senator. A lawyer by profession Joyal served as vice-president of the Quebec wing of the Liberal Party of Canada. He was first elected to the Canadian House of Commons in the 1974 general election and remained a Liberal Member of Parliament for ten years.In 1978 Joyal along with a group of concerned Montreal citizens that included Nick Auf der Maur and Robert Keaton co-founded the Municipal Action Group (MAG). 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