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. German submarine U-439 - German submarine U-439 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.She carried out four patrols. She sank no ships.She was a member of six wolfpacks.She was sunk after a collision with another U-boat in May 1943.
Answer:
Mean Of Transportation