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. Qamar Zaman Chaudhry - Major (R) Chaudhry Qamar Zaman is new Chairman National Accountability Bureau (NAB) of Pakistan. NAB the country's top anti-graft watchdog has almost become dysfunctional after the Supreme Court dismissed the then NAB chairman Fasih Bokhari through its May 28 judgment. Qamar Zaman has held several key posts in his career.
A:
Office Holder