Detailed Instructions: 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.
Q: Question: What is the population of the city where Xuan-Yuan Sword opens? Passage 1:In 2010, she joined Jorge Elbrecht of Brooklyn-based Violens to record a "sgin" of Justin Bieber's "Never Let You Go": "We went on YouTube to find a video among the highest ranks of hits, and came across 'Never Let You Go'. We went on to make what we call a 'sgin' (anagram of the word 'sing')—an original song written specifically to synch into someone else's video on mute". Caroline shot and directed video for Violens' "It Couldn't Be Perceived". Polachek and Elbrecht collaborated again in 2014 on two singles, "I.V. Aided Dreams (feat. Caroline Polachek)" and "Full Mental Erase (feat. Caroline Polachek)". In 2012, she sang with Ice Choir (solo project of Kurt Feldman of The Pains of Being Pure at Heart) on the song "Everything Is Spoilt by Use" and directed/edited its official video. Caroline contributed vocals to Blood Orange's "Chamakay" (2013), collaborating with Blood Orange again on "Holy Will" (2018). In late 2013, Polachek wrote and produced "No Angel", which was featured on Beyoncé's critically acclaimed fifth studio album, Beyoncé. Thanks to this song, at the 57th Annual Grammy Awards, she received a Grammy Award nomination for Album of the Year. Polachek then collaborated with PC Music's, Danny L Harle in early 2016 on the single "Ashes of Love". Polachek collaborated with felicita throughout his album "Hej!" (PC Music 2018) including an arrangement of the Polish traditional song "Byl Sobie Krol" (released under the title "Marzipan"), and with Charli XCX on Pop 2 (2017) on tracks "Tears (feat. Caroline Polachek)" and "Delicious (feat. Tommy Cash).
 Passage 2:The story opens in Venice with Septem (賽特), a Frankish knight and covert intelligence operative of mixed descent from Gaul who was the lieutenant to Pepin the Younger. Septem possessed an heirloom bronze vessel with an eastern design, which was in fact the Monster Fusion Vessel. He had heterochromic pupils of blue and brown, garnering discrimination and distrust from his peers and fellow knights over his somewhat Eastern appearance. Miles (麥爾斯) (the reincarnation of Satan whose memories and innate powers had not yet been fully awakened), a knight-commander under the guidance of the cleric Cornelius (康那里士) (the Dread Lord of Hell in disguise), was the polar opposite of his rival Septem, enforcing the Church's will without mercy and question, executing those designated as heretics without hesitation, and had the affection of Lilian (莉蓮), a pure maiden Septem had courted in vain. Pepin himself, however, favored Septem, and gave him a quest of great import. He was to go to the East, and find the way to achieve Absolute Victory/the Way of the King. During the journey, a simpleminded demoness named Nicole (妮可) joined Septem after being summoned by a strange dying man Septem tried to help, as an agent sent by Satan. Her mission was to awaken Septem's memory of his past life, in which he was Lucifer's most trusted ally who took part in Lucifer's Rebellion, and to convert him to Satan's cause once more, accompanied with promises of wealth, power, and demonic servants, but she eventually abandoned her mission over the fondness she developed for Septem. Kama, a self-proclaimed spirit of love, and Ankh, a snarky talking flying Egyptian black cat accompanying Kama (both of whom Septem encountered in the Tadmor Tombs), as well as Li Jing (李靖), a Chinese mortal-turned-deity who oversaw the establishment of the Tang dynasty, whose reincarnated self, Master Huiyan, previously accompanied Septem for a short time before sacrificing himself in an attempt to stop a war between the Abbasid Caliphate (which recently overthrew Umayyad rule) and Tang (which ended in the defeat of the Tang forces led by Gao Xianzhi), also joined the party. Septem also met his eventual wife, Widad (薇達), a military leader who defied Arabian patriarchal traditions and who was the reincarnated spirit twin of Kama, and the young grandson of Al-Kindi, whom Septem studied under for a short time around the time of the Abbasid Revolution, as well as Wang Siyue (王思月), a willful young woman from Chang'an with feelings for Septem, along his journey. After finally reaching China and encountering a variety of conflicts, including the An Lushan Rebellion, the group discovered Satan's plan to subjugate all worlds by using the Reversal of Mandala Ritual (反曼陀羅陣), which Septem's past incarnation invented and gained time traversal powers from, to modify the natural laws of causality, and managed to foil it with the assistance of The Immortal of Xuan-yuan Sword (the avatar of the Xuan-Yuan Sword who takes on the form of a stern and wise old man). After Satan's defeat, Septem married Widad, returned to assist Charlemagne with lessons from his journey-that a ruler must rule in the best interests of the commonfolk, and the way to ensure victory lies in the prevention and cessation of conflicts, and later reunited with Nicole, who was reborn once more as a normal girl by the grace of Heaven.
 Passage 3:Folliott Herbert Sandford, the son of a barrister, was born on 28 October 1906. He was educated at Winchester College and New College, Oxford, where he obtained first-class degrees in Classics and in Law. He joined the Air Ministry as a civil servant in 1930, working as Principal Private Secretary to four Secretaries of State for Air between 1937 and 1940: Viscount Swinton, Sir Kingsley Wood, Sir Samuel Hoare and Sir Archibald Sinclair. In 1941 and 1942, he was attached to RAF Ferry Command in Montreal, Quebec, Canada; from 1942 to 1944, he was the secretary to the office of the Resident Minister for West Africa. He returned to the Air Ministry in 1944, rising from Assistant Under-Secretary of State to become Deputy Under-Secretary of State from 1947 to 1958. He was appointed a Companion of the Order of St Michael and St George (CMG) and a Knight Commander of the Order of the British Empire (KBE) in 1949. He became a Fellow of New College on his appointment as Registrar of the University of Oxford in 1958, succeeding Sir Douglas Veale, and held both positions until retiring in 1972. On his retirement, he was appointed an Honorary Fellow of New College and Wolfson College, and was awarded an honorary doctorate by the university. He was Master of the Skinners' Company from 1975 to 1976. He was twice married: to Gwendoline (née Masters) from 1935 until her death in 1977, and then to Peggy Young (née Odgear) from 1982 until her death in 1984. Sandford died on 5 July 1986. The historian Brian Harrison describes him as "unobtrusively providing expertise and continuity" and a hard worker, but one who "lacked Veale's vision and sense of proportion" and who suffered from having to try to match the standards set for the role by Veale.

A:
2