Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Question: How many total London clubs have played in the UEFA Champions League? Passage 1:The first obelisks may start to appear in the later 16th century and it is suggested that the obelisk on Compton Pike is Elizabethan in date. More securely dated is a series of obelisks which start to appear in the 18th century. The first of these was the Wakeman obelisk of 1702 by Nicholas Hawksmoor, which is set in the square at Richmond, Yorkshire. Probably several hundred obelisks exist in the British Isles dating from 18th and early 19th centuries. Most of these obelisks, which are often landmarks commemorate famous people and their achievements. At Stowe in Buckinghamshire an obelisk was erected in memory of Wolfe's victory at Quebec in 1752, while at the death of the Duke of Cumberland in 1765 was noted by an obelisk at Englefield Green in Surrey. Thomas Coke, Earl of Leicester, Coke of Norfolk the farming pioneer has a particularly fine obelisk, set up in the park he created at Holkham in Norfolk. Sometimes an obelisk was used to mark the site of a battle such as the obelisk on the site of English Civil War battlefield at Naseby in Leicestershire. Occasionally obelisks are used as mile markers, as on the Great North Road at a mile from Westminster. In Lincoln an elaborate obelisk was set up on the High Bridge in 1762–63 as a conduit for dispensing water, while Anthony Salvin used obelisks as water fountains on the Belton House estates in Lincolnshire.
 Passage 2:Football is now the most popular spectator sport in London, and the city has several of England's leading clubs. Most London clubs are named after the district in which they play (or used to play). Historically the London clubs have not accumulated as many trophies as those from the north-west of England, such as Liverpool and Manchester United, but at present Arsenal (founded at Woolwich Arsenal but playing in Holloway), and Chelsea (who actually play in Fulham) are regarded as two of the Premier League's "big four" alongside Manchester United and Liverpool. In 2003–04 they became the first pair of London clubs to finish first and second in the top flight, with Arsenal winning. In 2004–05 they did so again, this time with Chelsea winning. In 2009–10, three of the top four places were occupied by London sides—Chelsea (champions), Arsenal (3rd) and Tottenham Hotspur (4th). This meant that the 2010–11 season would see three London clubs in the UEFA Champions League for the first time ever.
 Passage 3:Crime in Stereo formed in 2001 and recorded a homemade demo tape that same year. The band released their debut, a split with New York City's Kill Your Idols, in 2003 on Blackout! Records. In early 2004, the band released their debut full-length in conjunction with Brightside Records, Explosives and the Will to Use Them and was well received by several punk music webzines. In early 2005 the band signed with Nitro Records, owned by Dexter Holland of The Offspring. Although a four-song EP titled The Contract was released in July 2005 to finish up the band's contract with Blackout! Records / Brightside, the band released the Fuel. Transit. Sleep EP that same year with Nitro Records containing two songs from the following album, The Troubled Stateside, which was released April 18, 2006 on Nitro Records.

Student:
2