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.

[EX Q]: Question: What were jet fuel prices in 1975? Passage 1:In addition to withdrawing from the prestigious long-haul routes to New York and Los Angeles after only 18 months, other specific measures the airline took at the time to ensure its survival included dropping all scheduled flights to Belfast, Copenhagen, Gibraltar, Ibiza, Málaga, Palma de Mallorca and Tunis, indefinitely suspending scheduled services on the Glasgow—Southampton route as well as cutting the number of frequencies on the Gatwick—Glasgow and Gatwick—Edinburgh routes from six to four daily round trips. Two surplus aircraft were leased out to Air Malta and Austrian Airlines respectively for the duration of the 1975 summer timetable period. Another aircraft was stationed at West Berlin's Tegel Airport during the month of July of that year to fulfill a short-term charter contract to carry Turkish migrant workers to and from Istanbul on behalf of a local tour operator. BCal also decided to increase its 707 freighter fleet from one to four aircraft and to acquire a five-seater Piper Aztec to serve the rapidly growing executive charter market. These changes left BCal with 25 operational aircraft for the 1975 summer season. To reduce operating costs further, the airline decided to contract out its scheduled operations between Gatwick and Le Touquet to BIA. The reason for replacing BCal's One-Eleven 200 jet aircraft on this route with that airline's Herald turboprops at the beginning of the 1975 summer timetable period was the high price of jet fuel, which had made BCal's own jet aircraft operations uneconomic.
 Passage 2:A goalkeeper, Smeulders began his career as a youth with Orient. He was unable to displace the number 1 shirt from Ray Goddard and John Jackson and made just a handful of League Cup appearances before departing the Os in 1979. To revive his stalled career, Smeulders began the first of three spells with Bournemouth in 1979. After failing to break into the first team, Smeulders dropped into non-league football in January 1981 with Trowbridge Town, moving on to Weymouth and then back to Bournemouth in January 1984. This time he did establish himself in the first team, making 75 league appearances and setting a then-club record seven consecutive clean sheets, before moving to Torquay United in 1986. After failing to hold down a first team place and spending time away from Plainmoor on loan, Smeulders returned to Bournemouth for the third time in 1987. He again failed to hold down a regular place and dropped back into non-league football in 1989. Smeulders retired at age 38, due to a damaged knee.
 Passage 3:John Montagu was born in 1718, the son of Edward Montagu, Viscount Hinchingbrooke. His father died when John was four, leaving him as his heir. His mother soon remarried and he had little further contact with her. He succeeded his grandfather as Earl of Sandwich in 1729, at the age of ten. He was educated at Eton and at Trinity College, Cambridge, and spent some time travelling, initially going on the Grand Tour around Continental Europe before visiting the more unusual destinations of Greece, Turkey, and Egypt which were then part of the Ottoman Empire. This led him to later found a number of Orientalist societies. On his return to England in 1739, he took his seat in the House of Lords as a follower of the Duke of Bedford, one of the wealthiest and most powerful politicians of the era. He became a Patriot Whig and one of the sharpest critics of the Walpole government, attacking the government's strategy in the War of the Austrian Succession. Like many Patriot Whigs, Lord Sandwich was opposed to Britain's support of Hanover and strongly opposed the deployment of British troops on the European Continent to protect it, instead arguing that Britain should make greater use of its naval power. He gained attention for his speeches in parliament. His oratory earned him a reputation for clearly setting out his argument even if he lacked natural eloquence.

[EX A]: 1

[EX Q]: Question: What was the enrollment at Norwegian Academy of Music in 1954? Passage 1:Elvestrand was born in Østre Gausdal. His father was an organist at Østre Gausdal Church and Follebu Church, and he allowed Magne to play there in 1927. Elvestrand studied organ under Arild Sandvold and Fartein Valen, who dedicated his opus 33 to him, and studied theory, harmony, and counterpoint under Gustav Fredrik Lange and Per Steenberg. At the age of 18 he was made cathedral organist at Oslo Cathedral while Eyvind Alnæs was ill and then continued in this function after Alnæs's death until Sandvold was appointed to the position. During the commemoration of the 200th anniversary of Bach's death in 1950, Elvestrand played all of Bach's works at Grefsen Church, where he was organist from 1940 to 1967. He debuted as a pianist in 1956, and he performed his first full harpsichord concert in Copenhagen in 1962. Elvestrand served as the organist at Trinity Church in Oslo from 1967 to 1984. As a teacher, he worked at the Oslo Conservatory of Music from 1942 to 1954 and from 1966 to 1973, at the Norwegian Academy of Music from 1973 to 1984, and at the Huseby public school for the blind from 1952 to 1975. He retired in 1981. Elvestrand's solo album was nominated for the 1977 Spelleman Awards in the classical/contemporary music category, but the award was won by Grex Vocalis. Elvestrand died in Germany.
 Passage 2:The band signed to Earache Records in the late 1980s and released their influential debut album, Streetcleaner (1989), to critical acclaim. After the release of Pure (1992) and their major label debut Selfless (1994), they started experimenting with live drums, as well as with hip hop and breakbeat sounds. The resulting albums, Songs of Love and Hate (1996) and Us and Them (1999), were followed by Hymns (2001), which saw a simplification of the band's sound. Shortly after Green's departure in 2002, Broadrick ended Godflesh and pursued various other projects, including Jesu. Broadrick and Green reformed Godflesh in 2010, releasing A World Lit Only by Fire (2014) and Post Self (2017) to critical acclaim.
 Passage 3:McGarrity won the Formula Ford Festival in 1995 after finishing second in the British Formula Ford series. He was nominated for the McLaren Autosport BRDC Award but it went to fellow Northern Ireland driver Jonny Kane. In 1996 he drove in Formula Opel and the following year he drove in the British Formula Three Championship where he finished 10th. In 1998 he moved up to Formula 3000 where he competed in the first five races for Raceprep Motorsport and rounds 7 through 9 for Nordic Racing. He competed full-time in 1999 for Nordic Racing and finished 10th in points despite only finishing in the points once, finishing on the podium in second in the season opener at Imola. He returned to the team and series in 2000, this time with teammate Justin Wilson. He finished 20th in points with a best finish of 4th at Monaco. In 2001 he left formula cars for sports car racing and drove in the 2001 24 Hours of Le Mans for the MG factory team, but the car failed to finish. He drove the same car in 2002 but the result was the same. He returned to the race in 2004 driving a Bioethanol powered Reynard-Judd for Team Nasamax, finishing the race 17th overall. He drove part-time in the Le Mans Series in 2006. He then joined McLaren Automotive as full-time test driver for the new McLaren car project the MP4-12C from the start of the project.

[EX A]: 1

[EX Q]: Question: How long was John Houlding's stadium empty? Passage 1:Angie was later interviewed in the documentary film Not My Life, in which Angie explains how she and Melissa were expected to engage in sexual intercourse with truck drivers at a truck stop and steal their money. Angie said that, while looking through one of these drivers' wallets, she found pictures of the man's grandchildren and realized that he was old enough to be her and Melissa's grandfather. She recounts this story disgustedly and almost crying, and says, "I wanted to die." Beaver also appears in the film, saying, "It's not just truck drivers. We're seeing them purchased and abused by both white collar and blue collar individuals." Robert Bilheimer, the film's director, said that Angie did not fit the stereotype for a girl at risk of being sexually trafficked: she was from the heartland, attended a private school and, when her parents divorced, she began acting out as a way of seeking attention. A man abducted her when she was 12 years old, violated the Mann Act by transporting her to another state, and began trafficking her sexually. While being trafficked, Angie was expected to engage in 40 sex acts every night, charging $20 for oral sex, $40 for vaginal sex, and $80 for both. Her trafficker threatened to kill her if she refused to perform these acts. Bilheimer said that the truck drivers Angie was expected to service either did not know or did not want to know what would happen to her if she did not give all of the money she earned to her pimp.
 Passage 2:A thin film is a layer of material ranging from fractions of a nanometer (monolayer) to several micrometers in thickness. The controlled synthesis of materials as thin films (a process referred to as deposition) is a fundamental step in many applications. A familiar example is the household mirror, which typically has a thin metal coating on the back of a sheet of glass to form a reflective interface. The process of silvering was once commonly used to produce mirrors, while more recently the metal layer is deposited using techniques such as sputtering. Advances in thin film deposition techniques during the 20th century have enabled a wide range of technological breakthroughs in areas such as magnetic recording media, electronic semiconductor devices, LEDs, optical coatings (such as antireflective coatings), hard coatings on cutting tools, and for both energy generation (e.g. thin-film solar cells) and storage (thin-film batteries). It is also being applied to pharmaceuticals, via thin-film drug delivery. A stack of thin films is called a multilayer.
 Passage 3:Liverpool Football Club is an English association football club based in Liverpool, Merseyside, which competes in the top tier of English football, for the 2019–20 season. The club was formed in 1892 following a disagreement between the board of Everton and club president John Houlding, who owned the club's ground, Anfield. The dispute over rent resulted in Everton leaving Anfield for Goodison Park, which left Houlding with an empty stadium. Not content for his ground to lay idle, he created his own club: Liverpool. Liverpool joined the Lancashire League on their foundation before the 1892–93 season. They ended their inaugural season as league champions, and were elected to The Football League soon afterwards. The club remained in The Football League until 1992, when its First Division was superseded as English football's top level by the newly formed Premier League.

[EX A]:
3