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: Nasutitermes walkeri commonly known as the niggerhead termite or tree termite is a species of arboreal termite found in eastern New South Wales and southeastern Queensland Australia.
Question: The document can be classified to which topic?
Options: 1)Artist, 2)Building, 3)Animal, 4)Company, 5)Film
[A]: 3

[Q]: Context: Stenocereus alamosensis (octopus cactus or cina) is a species of cactus native to Mexico. It is viviparous (that is the seeds germinate before leaving the parent plant) apparently an adaptation to living in coastal plains which are prone to flooding. The Seri people of Sonora call this cactus xasaacoj.
Question: The document can be classified to which topic?
Options: 1)OfficeHolder, 2)Plant, 3)Artist, 4)EducationalInstitution
[A]: 2

[Q]: Context: Aetholaelaps is a genus of mites in the family Laelapidae.
Question: The document can be classified to which topic?
Options: 1)Animal, 2)Plant, 3)MeanOfTransportation, 4)NaturalPlace, 5)Company
[A]:
1