Please answer the following question: Prafulla Chandra Sen (Bengali: 10 April 1897 25 September 1990) was a Bengali Indian politician and freedom fighter. He was the Chief Minister of West Bengal during the period 19611967. 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