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: Gulp: Adventures on the Alimentary Canal is a non-fiction work by science author Mary Roach published in April 2013 by W.W. Norton & Company.
Question: The document can be classified to which topic?
Options: 1)Athlete, 2)WrittenWork, 3)Film, 4)OfficeHolder, 5)Building
A:
2