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: How many years did the war last that coincided with Bracton's retirement? Passage:Plucknett describes Bracton in this way: "Two generations after Ranulf de Glanvill we come to the flower and crown of English jurisprudence – Bracton." Bracton was born around 1210 in Devon and had a great deal of preferment in the Church. He either derived from Bratton Fleming or Bratton Clovelly. Both villages are in Devon. It was only after his death that the family name appears as Bracton; during his life, he was known as Bratton, or Bretton. This originally may have been Bradton, meaning "Broad Town". Bracton first appeared as a justice in 1245. From 1248 until his death in 1268 he was steadily employed as a justice of the assize in the southwestern counties, especially Somerset, Devon and Cornwall. He was a member of the coram rege, also called the coram ipso rege, later to become the King's Court. He retired from this in 1257, shortly before the meeting of the Mad Parliament in 1258 at Oxford. It is unknown whether his retirement was related to politics. His leaving coincided with the onset of the notorious Second Barons' War in 1264. At that time Bracton was ordered to restore to the Treasury the large store of plea rolls (case records from previous trials) that had been in his possession. He was also forced to surrender the large number of rolls from his predecessors Martin Pateshull and William Raleigh, also known as William de Raley. It cannot be determined whether he disgraced the King or the barons in this affair, but it is speculated that some kind of political intrigue was involved. The practical result was that his major work, De Legibus et Consuetudinibus Angliae ("The Laws and Customs of England"), was left unfinished. Even so, it exists in four large volumes today. He continued to follow the assizes in the southwest until 1267. In the last year of his life he filled another prominent role, as member of a commission of prelates, magnates and justices appointed to hear the complaints of the "disinherited" – those who had sided with Simon de Montfort, 6th Earl of Leicester.
 Links: a. Second Barons' War b. Somerset c. Simon de Montfort, 6th Earl of Leicester d. Second Barons' War

Output: a


Input: Consider Input: Question: Who won the second race that Sebastian Vettel participated in? Passage:Driving in place of Robert Kubica, Vettel made his début in with BMW Sauber in the United States Grand Prix; making him (at that time) the youngest points scorer in Formula One by finishing eighth in the race. His second race came with Scuderia Toro Rosso in the 2007 Hungarian Grand Prix and he stayed at Toro Rosso until the end of the season. Vettel won his first race at the 2008 Italian Grand Prix starting from his first pole, which remains Toro Rosso's only win. He then moved to Red Bull for the season and stayed at Red Bull until the end of the season. During his six years at Red Bull, he secured four championships, 38 wins, 44 pole positions and 65 podium finishes. Vettel's first championship came at the age of 23 years and 134 days in , becoming the youngest ever world champion; this was followed by three consecutive championships. , a winless season for Vettel, was his final year with Red Bull; he then joined Scuderia Ferrari. In his first year with Ferrari, he secured 3 wins, 1 pole position, and 13 podium finishes, going on to finish 3rd in the standings. In the season, Vettel had no wins with Ferrari and finished 4th in the standings. However, in he finished the season in second place with 5 victories. His Grand Prix victories is the third highest of all-time, only behind Lewis Hamilton's wins and Michael Schumacher at 91.
 Links: a. Red Bull Racing b. 2007 Hungarian Grand Prix c. Robert Kubica d. List of Formula One driver records

Output: b


Input: Consider Input: Question: What is the largest city in the state where Chandrasekhar was born? Passage:Vadapalli Chandrasekhar, born on 6 November 1958 in Kolkata, in the Indian state of West Bengal, graduated in chemistry in 1975 and completed his post graduate studies in 1977 at Osmania University before enrolling for doctoral studies at Indian Institute of Science under the guidance of S. S. Krishnamurthy. After securing a PhD in 1982, he moved to the University of Massachusetts, Amherst in 1983 and completed his post-doctoral studies at the laboratory of Robert R. Holmes in 1986. He returned to India the same year and started his career as a senior research officer at Indian Petrochemicals Corporation Limited but his stay there lasted only one year. In 1987, he joined IIT Kanpur as an assistant professor to commence a service which would extend till 2012; during this period, he held various positions such as that of an associate professor (1991–1995), professor (1995–), head of the department of chemistry (2008–2010) and dean of faculty affairs (2011–2012). His next move was to Tata Institute of Fundamental Research at their Hyderabad research station as a senior professor and dean and in 2014, he shifted to National Institute of Science Education and Research where he serves as the director. He has also served as a visiting faculty or fellow at various institutions such as University of Calgary, University of Göttingen, University of Tsukuba, and University of Würzburg.
 Links: a. Kolkata b. Tata Institute of Fundamental Research c. University of Massachusetts Amherst d. West Bengal


Output: d