Given the task definition and input, reply with output. 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: When did the Second World War end? Passage 1:When the Second World War broke out in September 1939, Norway followed a policy of neutrality, as it had successfully done during the First World War, hoping to stay out of the war once again engulfing Europe. So Norway was at peace in April 1940 when it was suddenly attacked by naval, air and military forces from Nazi Germany. Unlike in the First World War, the Norwegian military was only partially mobilised, with the Royal Norwegian Navy and the coastal artillery being set up with skeleton crews. The Norwegian Army activated only a few battalions in North Norway (amongst others the Alta Battalion) as a precaution in connection with the Soviet Winter War invasion of Finland. Although the Norwegian Government had carried out a hurried modernisation of the military in the second half of the 1930s, the armed forces were still in a shambles. Effects of the wide-ranging budget reductions carried out during the pacifist policies of the late 1920s and early 1930s were still apparent. In 1940, the Norwegian armed forces were among the weakest in Europe.
Passage 2:Blackpool Borough were the first professional rugby league club in the town. However, they eventually folded after leaving the town in 1987. Blackpool Panthers were formed in 2004 and played in Co-operative Championship One. They ground-shared at Bloomfield Road then in 2007 at Woodlands Memorial Ground, the home of Fylde Rugby Club in the neighbouring town of Lytham St Annes. The club ceased to exist after the 2010 season due to lack of finance. Blackpool also has a rugby union club, called Blackpool RUFC. Their home ground is Norbreck Rugby Ground. The resort formerly held the now discontinued Northern Rail Cup Final at Bloomfield Road, a Rugby League knockout competition for all clubs outside of the Super League attracting many thousands of visitors.
Passage 3:When the Gilbert and Sullivan partnership collapsed after the production of The Gondoliers in 1889, their producer Richard D'Oyly Carte struggled to find successful new works to show at the Savoy Theatre. Carte produced Sullivan's grand opera, Ivanhoe at another theatre, and afterwards, he turned to Sullivan to create more comic operas for the Savoy. With Sydney Grundy, Sullivan wrote the nostalgic and sentimental Haddon Hall (1892) then, reunited with W. S. Gilbert, he produced Utopia, Limited (1893). He next returned, with his earlier collaborator F. C. Burnand, with The Chieftain (1894) and collaborated for the last time with Gilbert on The Grand Duke (1896). None of these had proved to be more than modestly successful, and Carte's other new pieces for the Savoy in the 1890s had done no better. Following the success of Sullivan's ballet Victoria and Merrie England in 1897, Carte asked Sullivan to work on another new opera for the Savoy.
1