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: Annals of Transplantation is a quarterly peer-reviewed medical journal that was established in 1996 and is published by International Scientific Information. It is the official publication of the Polish Transplantation Society with the co-operation of the Czech Transplantation Society and the Hungarian Transplantation Society and covers research on all aspects of organ transplantation.
Question: The document can be classified to which topic? 
Options: 1)Film, 2)WrittenWork, 3)NaturalPlace, 4)Village, 5)Company

A: 2
****
Q: Context: The Institute of Mathematical Statistics is an international professional and scholarly society devoted to the development dissemination and application of statistics and probability. The Institute currently has about 4000 members in all parts of the world. Beginning in 2005 the institute started offering joint membership with the Bernoulli Society for Mathematical Statistics and Probability as well as with the International Statistical Institute.
Question: The document can be classified to which topic? 
Options: 1)Film, 2)Company, 3)Album, 4)Building, 5)OfficeHolder

A: 2
****
Q: Context: Roelof Paul Citroen (December 15 1896 – March 13 1983) was a German-born Dutch artist art educator and co-founder of the New Art Academy in Amsterdam. Among his best-known works are the photo-montage Metropolis and the 1949 Dutch postage stamps.
Question: The document can be classified to which topic? 
Options: 1)Film, 2)Artist, 3)OfficeHolder, 4)Building

A:
2
****