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 BFW M.26 was a single-engined cantilever-winged monoplane light airliner built in Germany in 1930. There were no sales and only one was built.
Question: The document can be classified to which topic? 
Options: 1)WrittenWork, 2)EducationalInstitution, 3)Artist, 4)Film, 5)MeanOfTransportation
A:
5