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: Akaflieg is an abbreviation for Akademische Fliegergruppe groups of aerodynamical engineering students from individual German Technical Univerties pre and postwar who design aircraft often gliders.
Question: The document can be classified to which topic? 
Options: 1)Athlete, 2)Company, 3)EducationalInstitution, 4)Village, 5)Artist

A: 2
****
Q: Context: Chionanthus callophylloides grows as a tree up to 13 metres (40 ft) tall with a trunk diameter of up to 25 centimetres (10 in). The bark is brown. Fruit is blue green ellipsoid up to 3 centimetres (1 in) long. Habitat is lowland mixed dipterocarp forest sometimes in swamps. C. callophylloides is endemic to Malaysian Borneo (Sabah and Sarawak).
Question: The document can be classified to which topic? 
Options: 1)OfficeHolder, 2)NaturalPlace, 3)Animal, 4)Plant, 5)WrittenWork

A: 4
****
Q: Context: Ardagh Group is a Luxembourg-based producer of glass and metal products. It was founded in 1932 as the Irish Glass Bottle Company. In 1999 it expanded by buying Rockware Glass and in 2007 by buying the Rexam Glass Division. In 2011 Ardagh Group bought the metal packaging company Impress Group for €1.7bn and acquired Fi Par in March 2011 for €125m. In August 2012 the company acquired Anchor Glass in an $880 million transaction.
Question: The document can be classified to which topic? 
Options: 1)Athlete, 2)Animal, 3)MeanOfTransportation, 4)Company

A:
4
****