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. Sirimavo Bandaranaike - Sirimavo Ratwatte Dias Bandaranaike (Sinhala: Tamil: ; 17 April 1916 10 October 2000) was a Sri Lankan politician and the modern world's first female head of government.
A:
Office Holder