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.
--------
Question: Context: Pediocactus peeblesianus is a rare species of cactus known by the common names Navajo pincushion cactus. It is endemic to the state of Arizona in the United States. One subspecies of the plant is federally listed as an endangered species of the U.S.This petite cactus grows up to 6.5 centimeters tall by about 5.5 wide. It is grayish green in color and generally spherical or egg-shaped.
Question: The document can be classified to which topic?
Options: 1)Plant, 2)Company, 3)NaturalPlace, 4)Artist

Answer: 1

Question: Context: The Akaflieg Munchen Mu9 is a tail-less light aircraft that was designed in Germany in 1932.
Question: The document can be classified to which topic?
Options: 1)WrittenWork, 2)Album, 3)Company, 4)Building, 5)MeanOfTransportation

Answer: 5

Question: Context: Six Songs is an album by Melvins released in 1986 through C/Z Records. The album has been released as Six Songs (1986 vinyl) Eight Songs (1991 vinyl) 10 Songs (1991 CD) and 26 Songs (2003 CD). The songs are taken from two sessions in 1986.Tracks 1-10 are taken from the 1991 eight/ten song LP/CD version rerelease of this album. Tracks 11-16 are taken from the original six song vinyl release. Tracks 17-19 were taken from the 1986 Outtakes From First 7 inch vinyl single.
Question: The document can be classified to which topic?
Options: 1)Artist, 2)Album, 3)Athlete, 4)MeanOfTransportation

Answer:
2