Definition: 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.
Input: Context: Alweg was a transportation company known for pioneering straddle-beam monorails.[citation needed]
Question: The document can be classified to which topic? 
Options: 1)Film, 2)Athlete, 3)MeanOfTransportation, 4)Album, 5)EducationalInstitution
Output:
3