Please answer the following question: James James-J Walsh (born 25 July 1983) is an equality campaigner best known for his work as an LGBT rights campaigner. His previous work includes being Campaigns Director of Out4Marriage an LGBT charity that promotes same-sex marriage equality in the United Kingdom and beyond for which he was cited amongst the 'top 10 most influential LGBT people' in the UK by The Independent newspapers' Pink List. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Office Holder