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 H-7 (SS-150) - USS H-7 (SS-150) was an H-class submarine that served in active duty with the United States Navy from 1918-1922.The Imperial Russian Navy ordered 18 H-class submarines from the Electric Boat Company in 1915. Eleven were delivered and served as the American Holland class submarines but shipment of the final six was held up pending the outcome of the Russian Revolution of 1917 and the boats were stored in knockdown condition at Vancouver British Columbia. All six were purchased by the U.S.
Answer:
Mean Of Transportation