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: William H. Walker (July 25 1847 June 25 1913) was a Canadian politician.Born in Ochiltree Manse Ayrshire Scotland Walker emigrated to Canada in 1858. Walker was elected to the Legislative Assembly of Quebec for Huntingdon in 1900. A Liberal he was acclaimed in 1904 and 1908. He was re-elected in 1912.
Question: The document can be classified to which topic?
Options: 1)EducationalInstitution, 2)OfficeHolder, 3)Athlete, 4)Artist
A:
2