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.

Q: Context: Sander Thonhauser is a Dutch professional mixed martial artist. He competes in the Heavyweight division. He is a RINGS Holland veteran and has also fought for many other top promotions.His Mixed martial arts debut was on June 29 1997. Sander has not fought since 2005 where he lost to Murad Chunkaiev by submission on April 3 2005.
Question: The document can be classified to which topic? 
Options: 1)OfficeHolder, 2)Athlete, 3)EducationalInstitution, 4)Plant, 5)MeanOfTransportation

A: 2
****
Q: Context: Akaflieg is an abbreviation for Akademische Fliegergruppe groups of aerodynamical engineering students from individual German Technical Univerties pre and postwar who design aircraft often gliders.
Question: The document can be classified to which topic? 
Options: 1)Athlete, 2)Company, 3)EducationalInstitution, 4)Village, 5)Artist

A: 2
****
Q: Context: The Padina Chicera River is a tributary of the Bârsa River in Romania.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)NaturalPlace, 3)Building, 4)Village

A:
2
****