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: The Hooker County Courthouse located on Cleveland Ave. between Railroad and 1st Sts. in Mullen Nebraska is a courthouse building of Hooker County Nebraska. It was built in 1912. It was a work of Grand Island architect Oscar R. Kirschke.It was listed on the National Register of Historic Places in 1990. It was deemed significant as a good example of the County Citadel type of courthouse.
Question: The document can be classified to which topic?
Options: 1)Film, 2)Building, 3)OfficeHolder, 4)Animal
A:
2