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. Tang-class submarine - The Tang class submarines were a product of the Greater Underwater Propulsion Power Program (GUPPY) which incorporated German U-boat technology into the United States Navy's submarine design. They comprised the state of the art in post-World War II conventionally powered submarine design; a design that was incorporated into and replaced by the nuclear-powered submarines of the 1950s and beyond.
Answer:
Mean Of Transportation