Given the question: The Thomas Saf-T-Liner is the name of the transit-style (Type D) school bus product line produced by Thomas Built Buses. Introduced in 1978 the Saf-T-Liner marked the transition to in-house chassis production by Thomas. In addition to school bus applications variations of the Saf-T-Liner have been produced as activity buses specialty vehicles and commercial/transit buses. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
The answer is:
Mean Of Transportation