Tom John Marsters (born 4 August 1945) is the 7th Queen's Representative to the Cook Islands. He is a former Deputy Leader of the Cook Islands Party and Deputy Prime Minister of the Cook Islands. 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