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. Sim Kee Boon -  Sim Kee Boon (Chinese: 沈基文; pinyin: Shěn Jīwén) was one of Singapore's pioneer civil servants - men who worked closely with the Old Guard political leaders and played a key role in the success of Changi Airport and turned the fortunes of Keppel Shipyard around. He graduated with Bachelor of Arts (Honours) in Economics from University of Malaya in 1953 and joined the civil service that year.
Answer:
Office Holder