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.

[EX Q]: 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
[EX A]: 1

[EX Q]: Context: Lautenbach (Ablach) is a river of Baden-Württemberg Germany.
Question: The document can be classified to which topic? 
Options: 1)MeanOfTransportation, 2)Film, 3)WrittenWork, 4)NaturalPlace, 5)Company
[EX A]: 4

[EX Q]: Context: Miller Park Elementary School is located at 5625 North 28th Avenue in the Miller Park neighborhood of north Omaha Nebraska. The school is credited for creating the original Junior Forest Club concept.
Question: The document can be classified to which topic? 
Options: 1)Building, 2)Plant, 3)EducationalInstitution, 4)Village
[EX A]:
3