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: Forcipiger longirostris commonly known as the longnose butterflyfish or big longnose butterflyfish is a species of butterflyfish found on coral reefs throughout the tropical waters of the Indo-Pacific. Even with its distinctive point-like long nose the longnose butterflyfish still can easily be confused with its more common cousin F. flavissimus. Both species may be kept in aquariums.
Question: The document can be classified to which topic?
Options: 1)Animal, 2)Company, 3)NaturalPlace, 4)Album, 5)Building
A:
1