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. Alan Emerson - Robert Alan Emerson (born 29 May 1957) generally known as Alan Emerson is a British former motorcycle speedway rider.Born in Haltwhistle Northumberland Emerson had second half rides at Workington Belle Vue and Teesside before making his competitive debut in 1973 for Teesside Tigers. He also competed regularly in grasstrack. In 1975 he had his first rides in British speedway's top flight with Leicester Lions the team he also rode for in 1976 doubling up with Teesside.
The answer is:
Athlete