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. Tafari Benti - Brigadier General Tafari Benti (19211977) was the Head of State of Ethiopia (28 November 1974 3 February 1977) and chairman of the Derg the ruling junta. His official title was Chairman of the Provisional Military Administrative Council.
A:
Office Holder