Given the 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. Mark Chen - Chen Tang-shan or Mark Chen (Chinese: ; pinyin: Chen Tangshan) born September 16 1935 in Tainan County (now part of Tainan City) Taiwan is a Taiwanese politician former Secretary-General of the Office of the President of the Republic of China (Taiwan) under ex-President Chen Shui-bian. He was also previously Foreign Minister of the ROC from 2004 to 2006 (the first Democratic Progressive Party member to occupy the position).
The answer is:
Office Holder