You will be given a definition of a task first, then some input of the task.
In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.

Question: How many players did the Doncaster Rovers have when Griffith joined the team? Passage 1:At the same time that Walter was developing submarine engines, he was also applying his ideas to rocketry. The high-pressure gas mixture created by the rapid decomposition of hydrogen peroxide could not only be used in a turbine, but if simply directed out of a nozzle, created considerable thrust. Wernher von Braun's rocketry team working at Peenemunde expressed interest in Walter's ideas, and in 1936 began a programme of installing Walter rockets into aircraft. The experimental results obtained by von Braun created interest among Germany's aircraft manufacturers, including Heinkel and Messerschmitt, and in 1939, the Heinkel He 176 became the first aircraft to fly on liquid-fuelled rocket power alone. This type of engine went on to become the cornerstone of the Messerschmitt Me 163 rocket-powered fighter, when married to Alexander Lippisch's revolutionary airframe design. Throughout the course of World War II, Walter's aircraft engines became increasingly powerful and refined. The original design of simply decomposing hydrogen peroxide was soon changed to its use as an oxidizer (much like dinitrogen tetroxide would be used later) when combined with a hydrazine/methanol true rocket fuel designated C-Stoff, into the hot, high-pressure gases, and in later, never-deployed developments, a second, 400kg (880 lb) thrust "cruising" combustion chamber, nicknamed a Marschofen, was added below the main chamber to allow for more precise control of the engine. Versions of this engine were intended to power a variety of aircraft design proposals and missile projects and was also licence-built in Japan (see HWK 109-509).
Passage 2:Impressing at non-league Halifax Town, he turned professional with Doncaster Rovers in 2005. Used sparingly in 200506, he was loaned out to Oxford United in March 2006, though did not make it onto the pitch. In 200607 he was loaned out to Darlington and Stafford Rangers, before he spent the 200708 campaign on loan at Halifax Town. In April 2008 he signed with Port Vale, and became a first team regular in 200809. He remained a key first team figure in 200910 and 201011, and was voted the club's Player of the Year in 2010. He continued to impress for the "Valiants", and earned a move up a division to Leyton Orient in May 2012. He returned to Port Vale on loan in March 2013, and helped the club to secure promotion out of League Two in 201213, before re-joining on a permanent basis in the summer. He signed with Shrewsbury Town in August 2014, before moving on to Carlisle United in January 2015. Six months later he signed for Altrincham before retiring in September 2015 due to a hip injury. He came out of retirement to sign for Glossop North End in September 2016. In 2017 he played for Trafford, Colwyn Bay, and Congleton Town.
Passage 3:In 2012, Hudson Mohawke began a series of collaborations with Kanye West, resulting in production credits on the GOOD Music label album Cruel Summer. On 17 January 2013, it was announced that Mohawke had officially signed with GOOD Music as a producer, whilst remaining with Warp and LuckyMe as a recording artist. TNGHT announced their hiatus on 27 December 2013. Mohawke co-produced two tracks on West's 2013 album Yeezus ("I Am a God" and "Blood on the Leaves") and contributed to West's 2016 follow-up The Life of Pablo, in addition to working with various other hip hop and pop artists, including Drake, Pusha T, and Future. In 2015, he released his second studio album, Lantern. In 2016, he collaborated with singer Anohni on her 2016 album Hopelessness. Mohawke announced on 26 October 2016 via Twitter that he was creating the original soundtrack for the 2016 video game Watch Dogs 2 titled "Ded Sec" and that Warp Records would release it on 11 November 2016.

Output:
2