Given the question: 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. USS Harkness (AMCU-12) - USS Harkness (AMCU-12/YMS-242) was a YMS-1-class minesweeper of the YMS-135 subclass acquired by the U.S. Navy for the task of removing mines that had been placed in the water to prevent ships from passing.Harkness was laid down as YMS-242 by Tacoma Boat Building Co. Tacoma Washington 1 June 1942; launched 10 October 1942; commissioned 27 March 1943 Lt. (j.g.) H. S. Meredith in command.
The answer is:
Mean Of Transportation