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: East Side Lake is a 40 acres (16.19 ha) reservoir in Austin Minnesota in western Mower County which is in the southeast part of the state. It is one of two man-made lakes in Mower County (the other is Lake Louise) which is one of only four counties in Minnesota without a natural lake. The majority of the lake is only 5-6 feet deep.
Question: The document can be classified to which topic?
Options: 1)EducationalInstitution, 2)Plant, 3)Album, 4)NaturalPlace, 5)Animal
A:
4