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 Joseph I. Lubin School of Business is the business school of Pace University. The school was established in 1906 as the Pace School of Accountancy to prepare men and women for the CPA exam and was named after Joseph I. Lubin an alumnus and benefactor of the school in 1981.
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)Album, 3)Animal, 4)Athlete

A: 1
****
Q: Context: Xylorhiza tortifolia is a species of flowering plant in the aster family known by the common names Mojave aster and Mojave woodyaster. It is native to the deserts of the southwestern United States where it grows in canyons and other habitat. It is a perennial herb or subshrub with branching hairy glandular stems that reach 60 to 80 centimeters in length. The leaves are linear lance-shaped or oval with pointed or spiny tips and spiny edges. The leaf surfaces are hairy and glandular.
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)NaturalPlace, 3)Film, 4)Plant, 5)Athlete

A: 4
****
Q: Context: The Iradia River is a tributary of the Grivele River in Romania.
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)Company, 3)Artist, 4)NaturalPlace, 5)Film

A:
4
****