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: What date did Mercedes win their first World Constructors' Championship? Passage 1:Barbour married Elise Barbour, a distant relative (b. Paterson, New Jersey, USA in 1873); Lady Barbour died at their home, Conway House, Dunmurry, in 1910. The couple had three daughters and one son, John Milne Jnr., whose aeroplane went missing whilst flying over the Irish sea in 1937. John was a civilian pilot (a former competitor in the King's Cup Race) who would fly home at the weekends from the Barbour factory in Glasgow, where he worked during the week. Barbour's sister, Helen, married Thomas Andrews, architect of the Titanic. Barbour was a Freemason. He was described by diarist Lillian Dean, later Lady Spender (wife of Sir Wilfrid Spender) as "a curious man who looks like a stage Mephistopheles but is given to preaching in dissenting chapels." A deeply religious man throughout his life he served on as a Member of the General Synod of the Church of Ireland. presented the East Window to Christ Church Cathedral, Lisburn, in memory of his wife and son. The baronetcy became extinct upon his death, Barbour was predeceased by his son.
 Passage 2:Mercedes won their first World Constructors' Championship after taking a 1–2 finish in Russia. Lewis Hamilton won his second World Drivers' Championship after a season-long battle with teammate Nico Rosberg. Rosberg won the Australian and Monaco Grands Prix, and Hamilton the races in Malaysia, Bahrain, China and Spain after retiring in Australia. The Mercedes team's run of victories ended in Canada where Rosberg and Hamilton were simultaneously hit with a power unit failure that put additional strain on their brakes. Hamilton was forced out of the race and while Rosberg was able to continue, his performance deteriorated and he ultimately finished second. Mercedes returned to the top of the podium in Austria, with Rosberg leading Hamilton across the finish line for his third victory of the season. Hamilton reclaimed ground in the championship standings in Britain winning after Rosberg was forced out with gearbox issues. Rosberg claimed the win in Germany, while Hamilton recovered to third after an accident in qualifying saw him start from twentieth place. Hamilton finished third in Hungary after starting from pit lane, ahead of Rosberg. Rosberg had to settle for second place in Belgium after contact with Hamilton early in the race, which ultimately prompted Mercedes to retire Hamilton's car. Hamilton went on to claim his sixth win of the season in Italy, ahead of Rosberg. Hamilton reclaimed the championship lead with a win in Singapore, while Rosberg was retired with a broken wiring loom. Hamilton claimed the win in rain- and accident-shortened Japan, ahead of Rosberg. Hamilton won the inaugural race in Russia, once again ahead of Rosberg. The result was enough for Mercedes to secure their first World Constructors' Championship. Hamilton took his fifth consecutive win – for the first time in his career – in the United States, again ahead of Rosberg. Rosberg took his fifth win of the season in Brazil, with Hamilton finishing in second. Hamilton carried a seventeen-point advantage into the title-deciding and went on to win the race while Rosberg struggled with electrical problems and finished outside the points. With eleven pole positions to his name, Rosberg won the inaugural FIA Pole Trophy.
 Passage 3:Mormon fiction is fiction by or about members of The Church of Jesus Christ of Latter-day Saints, also called Mormons or Latter-day Saints (LDS). Its history is commonly divided into four sections as first organized by Eugene England. During the first fifty years of the church's existence, 1830–1880, fiction was not popular, though Parley P. Pratt wrote a fictional Dialogue between Joseph Smith and the Devil. With the emergence of the novel and short stories as popular reading material, Orson F. Whitney called on fellow members to write inspirational stories. During the home literature movement, church-published magazines published many didactic stories and Nephi Anderson wrote the novel Added Upon. The generation of writers after the home literature movement produced fiction that was recognized nationally but was seen as rebelling against home literature's outward moralization. Vardis Fisher's Children of God and Maurine Whipple's The Giant Joshua were prominent novels from this time period. In the 1970s and 1980s, authors starting writing realistic fiction as faithful Mormons. Acclaimed examples include Levi S. Peterson's The Backslider and Linda Sillitoe's Sideways to the Sun. Home literature experienced a resurgence in popularity in the 1980s and 1990s when church-owned Deseret Book started to publish more fiction, including Gerald Lund's historical fiction series The Work and the Glory and Jack Weyland's novels.
2