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.

Ex Input:
Question: Was the person whose memoirs were translated by Obolensky a Russian general? Passage:Born in 1909 in the family of Orthodox princes Obolensky, from 1925 in exile in France, where, together with his father Nikolai Leonidovich Obolensky adopted Catholicism. He went to the Benedictines, where studied philosophy, and in 1943 he defended his doctoral degree from Pontifical Atheneum of St. Anselm in Rome. From 1935 he studied at Russicum. Ordained priest in 1940, Obolensky was sent to Paris, where he taught at Saint George Boarding in Meudon. He was also a member of the Congress of Russian Catholics in 1950 in Rome. Obolensky taught courses on the history of Russian literature and philosophy in Rome, Meudon and Bergamo. He worked as an expert on the Soviet Union in NATO. He was also author of books on the Soviet economy, translated the correspondence of Joseph Stalin, Franklin Roosevelt and Winston Churchill, and the memoirs of Georgy Zhukov and was engaged in the Soviet dissident literature. He died in 1992 in Belgium, the home of his sister.
Links: a. Franklin D. Roosevelt b. Georgy Zhukov c. Winston Churchill d. Meudon

Ex Output:
b

Ex Input:
Question: Do more than 10,000 people live in the city where Bonnaroo is held? Passage:After the release of Levitate, his first full-length album, in 2011, he began to play shows and festivals around the country. Starting in 2012 with a US tour that saw him hit the road with The M Machine, he continued on to play the Coachella Valley Music and Arts Festival, more commonly known as Coachella, a festival that takes place in April in Indio, California. After Coachella he played Electric Forest Festival in Rothbury, Michigan in June 2012. He then played Lollapalooza Music Festival in Chicago, Illinois Grant Park (Chicago) in early August 2012 before Heading to New York City to play Electric Zoo Festival at the end of August 2012 on Randall's Island. He then kicked off his very own solo Night Vision Tour 2012 in September by releasing a 30-minute mix entitled Night Vision Tour Mix 2012. He has also played at Bonnaroo Music Festival in June 2013 in Manchester, Tennessee.
Links: a. Coachella Valley Music and Arts Festival b. New York City c. Manchester, Tennessee d. The M Machine

Ex Output:
c

Ex Input:
Question: Who found the company that made the car Bell drove in the 1969 British Grand Prix? Passage:Bell grew up on a farm and helped to run the Church Farm caravan site, complete with its own pub, near Pagham Harbour before being encouraged by his stepfather Bernard Hender to take up racing with a Lotus Seven in 1964. He won his first race in the Lotus at Goodwood in March of that year. He graduated to Formula Three in the following year racing a Lotus 31 and in 1966 switched to a Lotus 41 scoring his first victory, again at Goodwood. In 1967 he enjoyed seven wins. He entered Formula Two in a privateer Brabham BT23C fielded by his stepfather's Church Farm Racing team and after several promising performances, which caught Enzo Ferrari's eye, made his Formula One Grand Prix debut for Ferrari at Monza in 1968. He contested the 1969 Tasman Series in a 2.4 Dino and was second at Lakeside to Amon and Rindt at Warwick Farm. In 1969 he raced the four-wheel-drive McLaren M9A in its only ever race at the British Grand Prix at Silverstone.
Links: a. List of Brabham race cars b. Pagham Harbour c. Formula One d. Four-wheel drive in Formula One

Ex Output:
d