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: The Vârciorova River is a tributary of the Bistra River in Romania.
Question: The document can be classified to which topic? 
Options: 1)Village, 2)NaturalPlace, 3)MeanOfTransportation, 4)Building, 5)OfficeHolder

2