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: Chan Nak (May 27 1892 Phnom Penh Cambodia November 7 1954 Paris) was the Prime Minister of Cambodia from 1953 to 1954. He was the second prime minister of an independent Cambodia following Penn Nouth.Before being appointed the prime minister Chan served as the Minister of Justice in 1945 19451946 and 1950 the Interior Minister from 19531954 and the Information Minister from 1953 to 1954.
Question: The document can be classified to which topic?
Options: 1)MeanOfTransportation, 2)OfficeHolder, 3)Village, 4)NaturalPlace
[A]: 2

[Q]: Context: Melody for Three is a 1941 American film directed by Erle C. Kenton one of the six films of the Dr. Christian series.
Question: The document can be classified to which topic?
Options: 1)Company, 2)EducationalInstitution, 3)Plant, 4)Film, 5)OfficeHolder
[A]:
4