Please answer the following 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. HMS Mallow (K81) - HMS Mallow was a Flower-class corvette that served in the Royal Navy. She also served in the Yugoslav Royal Navy and the SFR Yugoslav Navy under the names Nada and Partizanka and the Egyptian Navy as El Sudan.
A:
Mean Of Transportation