Please answer the following question: John H. Sununu - John Henry Sununu (born July 2 1939) served as the 75th Governor of New Hampshire (198389) and later White House Chief of Staff under President George H. W. Bush. He is the father of John E. Sununu a former senator from New Hampshire. Sununu was the chairman of the New Hampshire Republican Party from 2009 to 2011. 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