Please answer the following question: Chevrolet Series M Copper-Cooled - The 1923 Chevrolet Series C Copper-Cooled was made to be completely air cooled. It was designed by Charles F. Kettering head engineer of Delco Electronics the General Motors research division wing in Dayton Ohio. The automobile used a body style from its predecessor but incorporated an air-cooled engine. Air cooling as opposed to water-based cooling was much more practical in a sense because it did not require a radiator nor the piping that came with it. 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