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: The Type 072A-class landing ship (NATO designation Yuting-III-class) is the latest member of Type 072 series landing ship. Derived from Type 072III-class landing ship the most obvious visual difference between Type 072A and all earlier models of Type 072 series is that the step of the stepped superstructure on all earlier models has been eliminated.
Question: The document can be classified to which topic?
Options: 1)NaturalPlace, 2)Film, 3)MeanOfTransportation, 4)Album, 5)Village
3