Joseph Erxleben -  Joseph John Erxleben (September 15 1889 – August 29 1973) was an American long-distance runner who competed in the marathon at the 1912 Summer Olympics in Stockholm. 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:
Athlete