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.
Q: Context: United States lightship Relief (WAL-605) is a lightvessel now serving as a museum ship in Oakland California. She was declared a National Historic Landmark in 1989. The NHL plaque identifies it as U.S. Coast Guard Lightship WLV 605.She is the sister ship to WLV-604 Columbia.
Question: The document can be classified to which topic?
Options: 1)Animal, 2)MeanOfTransportation, 3)Company, 4)OfficeHolder, 5)Building
A:
2