Please answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Mariano Acha -  Mariano Acha (11 November 1799 - 16 September 1841) was a soldier who fought in the Argentine Civil Wars.
A:
Office Holder