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: Vridni is a steel screw steamer tug built in Rijeka Croatia (at that time Fiume Austria-Hungary) in 1894 as Legy by Howaldtswerke's subsidiary Howaldt & Co as the first newbuild of the then new shipyard in Brgudi Rijeka (nowadays 3. Maj Shipyard) and one of the two tugs built for the shipyard's own use. The reciprocating steam engine was made in Kiel Germany.
Question: The document can be classified to which topic?
Options: 1)MeanOfTransportation, 2)Plant, 3)Building, 4)Company
1