Q:RENFE Class 252 - The RENFE class 252 are a series of Bo'Bo' electric locomotives built by CAF Meinfesa Siemens and Krauss-Maffei for RENFE. 15 units were built for the NAFA (Nuevo Acceso Ferroviario a Andalucia) line between Madrid - Sevilla (standard gauge version) and 60 units constructed for general use to Iberian gauge (1668mm). 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