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.
--------
Question: Context: A Matter of Life and Death is the fourteenth studio album by British heavy metal band Iron Maiden released on 25 August 2006 in Italy and Finland and 28 August worldwide excluding the US Canada and Japan on 5 September.
Question: The document can be classified to which topic? 
Options: 1)WrittenWork, 2)NaturalPlace, 3)Plant, 4)Album

Answer: 4


Question: Context: Phryganopsis is a genus of moths in the Arctiidae family.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)Film, 3)EducationalInstitution, 4)Animal, 5)Athlete

Answer: 4


Question: Context: The Oker is a river in Lower Saxony Germany that has historically formed an important political boundary. It is a left tributary of the River Aller 105 kilometres (65 mi) in length and runs in a generally northerly direction.
Question: The document can be classified to which topic? 
Options: 1)Film, 2)NaturalPlace, 3)OfficeHolder, 4)Company

Answer:
2