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 EMD DD35A was a 5000 hp (3730 kW) diesel-electric locomotive of D-D wheel arrangement built by General Motors Electro-Motive Division exclusively for the Union Pacific Railroad. They were a cab-equipped variant of the previous cabless booster (B unit) EMD DD35 (sometimes erroneously called the 'DD35B'). Fifteen DD35A locomotives were built between May and July 1965; they were assigned road numbers 70 through 84.
Question: The document can be classified to which topic? 
Options: 1)OfficeHolder, 2)MeanOfTransportation, 3)NaturalPlace, 4)Animal

A: 2
****
Q: Context: Čedomir Čeda Jovanović (Serbian Cyrillic: Чедомир Чеда Јовановић) (Serbian pronunciation: [tʃědomir tʃěːda joʋǎːnoʋitɕ] About this sound listen ) (born April 13 1971 in Belgrade) is a Serbian politician and businessman. He is the president of the Liberal Democratic Party (LDP).
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)NaturalPlace, 3)Album, 4)OfficeHolder, 5)Village

A: 4
****
Q: Context: Stenocereus alamosensis (octopus cactus or cina) is a species of cactus native to Mexico. It is viviparous (that is the seeds germinate before leaving the parent plant) apparently an adaptation to living in coastal plains which are prone to flooding. The Seri people of Sonora call this cactus xasaacoj.
Question: The document can be classified to which topic? 
Options: 1)OfficeHolder, 2)Plant, 3)Artist, 4)EducationalInstitution

A:
2
****