Q: 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.
Context: Euphorbia hildebrandtii is a species of plant in the Euphorbiaceae family. It is endemic to Madagascar. It is threatened by habitat loss.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)OfficeHolder, 3)Athlete, 4)Building, 5)Album
A:
1