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. Evertsen-class coastal defence ship - The Evertsen class or Kortenaer class was a class of coastal defense ships of the Royal Netherlands Navy. The class comprised Evertsen Piet Hein and Kortenaer.
The answer to this question is:
Mean Of Transportation