Q: 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 Venga TG-10 Brushfire was a military trainer aircraft developed in Canada in the late 1980s. The sole prototype was destroyed in a fire without having flown. The TG-10 was a low-wing single-engine jet with seating in tandem for the pilot and instructor. In general layout it resembled the Northrop F-5 but had twin outwardly-canted tail fins. Construction was of composite materials throughout.
Question: The document can be classified to which topic?
Options: 1)Company, 2)Plant, 3)Album, 4)MeanOfTransportation
A:
4