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: Ebalia tumefacta sometimes called Bryer's nut crab is a species of crab in the family Leucosiidae.
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)Building, 3)Company, 4)Animal
A:
4