Q: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. Unitrans 67736774 - Unitrans 6773 and 6774 were ex-West Riding double decker buses operated in regular service by Unitrans in Davis California. Originally they were part of a fleet of 55 identical buses built in 1968 and 1969 that operated in Yorkshire. These buses were modified by Unitrans with right side passenger doors and wheelchair lifts located behind the stairwell which necessitated the removal of some of the lower-level seating.
A:
Mean Of Transportation