Detailed Instructions: 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.
Q: Context: Microctenopoma ansorgii is a small freshwater fish known in the aquarium trade as the ornate ctenopoma orange ctenopoma ornate climbing perch pretty ctenopoma or rainbow ctenopoma. It belongs to the same genus as the spotted climbing perch (Ctenopoma acutirostre) but looks very different. Its body is more elongated and rounded the typical shape of a fish that spends much of its time on the bottom. The ornate ctenopoma spawns at night laying its eggs on a floating bubble nest of mucus.
Question: The document can be classified to which topic?
Options: 1)EducationalInstitution, 2)Animal, 3)OfficeHolder, 4)Film, 5)WrittenWork
A:
2