Answer the following question: Mark Johnson (footballer) -  Mark 'MJ' Johnson (born 23 May 1978) is a former professional Australian rules footballer who played for the Essendon Football Club and Fremantle in the AFL. 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?
Answer:
Athlete