Given the question: USNS Colonel William J. O'Brien (T-AK-246) - USNS Colonel William J. O'Brien (T-AK-246) was an Alamosa-class cargo ship that was constructed for the U.S. Navy during the closing period of World War II. However the war ended and she was transferred to the U.S. Army as USAT Colonel William J. O'Brien who kept her in service until transferred to the U.S. Navy in 1950. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
The answer is:
Mean Of Transportation