In this task, you are given a text which is the body of a document. You are given a question and options. Pick the correct number. Don't generate anything else apart from the numbers provided in options.

Context: USS Strength (AM-309) was a metal-hulled Admirable-class minesweeper built for the U.S. Navy during World War II. She received training in the United States before being sent directly to the Pacific Ocean to clear minefields so that Allied forces could proceed to beaches held by forces of the Empire of Japan. While performing this dangerous task she was also attacked by Japanese planes and narrowly avoided being torpedoed.
Question: The document can be classified to which topic?
Options: 1)NaturalPlace, 2)Artist, 3)MeanOfTransportation, 4)Plant, 5)Film
3