Please answer the following question: Clear the Air (Hong Kong) -  Clear The Air (simplified Chinese: 争气行动; traditional Chinese: 爭氣行動) is a voluntary organisation aiming at reducing air pollution in Hong Kong. It was founded on 10 December 1997 as a Society under the Societies Ordinance (Cap 151). It is self-sustained and is supported by individual membership fees and member donations.爭氣 means fighting for air and living up to others' expectations. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Company