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 FS E.645 and E.646 are two classes of similar electric locomotives used on Italian railways. They were introduced during the 1950s and they have been retired in 2009.
Question: The document can be classified to which topic? 
Options: 1)WrittenWork, 2)Athlete, 3)Plant, 4)MeanOfTransportation
[A]: 4


[Q]: Context: For the Australian magazine see Your Computer (Australian magazine).Your Computer was a British computer magazine published monthly from 1981 to 1988 and aimed at the burgeoning home computer market. At one stage it was in its own words Britain's biggest selling home computer magazine. It offered support across a wide range of computer formats and included news type-in program listings and reviews of both software and hardware.
Question: The document can be classified to which topic? 
Options: 1)Company, 2)Plant, 3)MeanOfTransportation, 4)WrittenWork
[A]: 4


[Q]: Context: Candlelight Records is an independent record label based in Europe founded by former Extreme Noise Terror bassist Lee Barrett though it has had a division in the United States since January 2001. Candlelight Records specialises in black metal and later on melodic death metal and death metal having bands such as Emperor Obituary 1349 Theatre of Tragedy Xerath Dismember Keep of Kalessin TheLord Nachtmystium KKDT42 and Zyklon on its roster.
Question: The document can be classified to which topic? 
Options: 1)Company, 2)NaturalPlace, 3)Album, 4)Plant, 5)Village
[A]:
1