Please answer the following question: John Cosgrove (Virginia politician) -  John A. Cosgrove (born June 7 1954) is an American politician. On August 16 2013 he was sworn in as a member of the Senate of Virginia representing the 14th district after winning an August 6 special election to replace the retiring Harry Blevins.From 2002 to 2013 Cosgrove served in the Virginia House of Delegates representing the 78th district in the city of Chesapeake. 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?
Answer:
Office Holder