Q:USS Inca (ID-3219) was a tugboat acquired by the U.S. Navy during World War I. She was assigned to the Parris Island South Carolina Marine barracks. She served until 1 February 1919. 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?
A:
Mean Of Transportation