In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Input: Consider Input: Question: Which of the teams Boswell played for was the oldest? Passage:Born in Chester, Boswell joined local football club Chester F.C. upon leaving school, initially as an amateur. He remained with the club until the outbreak of the Second World War, but never made it to the club's first team. During the war he served with the Royal Engineers and also made appearances as a guest player for Sheffield Wednesday during unofficial wartime competitions. He was later posted to Barton Stacey in Hampshire, where he helped his unit's football team win a major Army Football Association trophy. Upon leaving the army in 1946 he joined Gillingham, who at the time were playing in the Kent League. Gillingham manager Archie Clark also signed four other players who had served with Boswell at Barton Stacey and played alongside him in the unit football team, namely Jackie Briggs, George Forrester, Hughie Russell and Vic Hole.
 Links: a. Chester City F.C. b. Army Football Association c. Hampshire d. Kent Football League (1894–1959)

Output: a


Input: Consider Input: Question: Was Chevon Walker born in the Caribbeans?  Passage:Chevon Walker (born May 9, 1987 in Montego Bay, Jamaica) is a former professional Canadian football running back and kick returner for the Winnipeg Blue Bombers of the Canadian Football League. He played NCAA football for the Sioux Falls Cougars. He played two years of his career as a professional football player in the Canadian Football League for the Hamilton Tiger-Cats. In 2014, the Ottawa Redblacks selected him in the expansion draft. He started the 2015 season with the Ottawa Redblacks before he was released on August 28, 2015. On September 1, 2015, it was announced that Walker had signed with the Winnipeg Blue Bombers. Chevon Walker has over 1000 rushing yards and seven touchdowns in three years of professional play.
 Links: a. Hamilton Tiger-Cats b. Winnipeg Blue Bombers c. Canadian Football League d. Montego Bay

Output: d


Input: Consider Input: Question: What is the population of the city where Xuan-Yuan Sword opens? Passage: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.
 Links: a. Gaul b. Abbasid Revolution c. Venice d. Pepin the Short


Output: c