Q:British Rail Class 322 - The British Rail Class 322 electric multiple units were built by BREL in 1990. Five 4-car units were built for the dedicated Stansted Express service from London Liverpool Street to Stansted Airport. The Class 322 fleet are operated by Northern Rail and are seen working services around the Leeds area. 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:
Mean Of Transportation