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 his mother still alive when Benigno Simeon Aquino III took the oath? Passage:By tradition, it is also the chief justice who swears into office the President of the Philippines. One notable deviation from that tradition came in 1986, and later again in 2010. Due to the exceptional political circumstances culminating in the People Power Revolution, on February 25, 1986, Corazon Aquino took her oath of office as President before then Associate Justice Claudio Teehankee in San Juan just minutes before Ferdinand Marcos took his own oath of office also as President before Chief Justice Ramon Aquino. Marcos fled into exile later that night. More than two decades afterwards, Benigno Simeon Aquino III followed in his mother's footsteps (with almost similar reasons) by having then Associate Justice Conchita Carpio-Morales to administer his oath of office, rather than then Chief Justice Renato Corona (who was eventually impeached halfway through Aquino's term). Six years later, in 2016, Rodrigo Duterte took his oath of office before Associate Justice Bienvenido Reyes, his classmate at San Beda College of Law, instead of Chief Justice Maria Lourdes Sereno (who would eventually be removed thru quo warranto after it was determined that she had been unlawfully holding office ab initio).
 Links: a. Ferdinand Marcos b. Corazon Aquino c. Rodrigo Duterte d. Corazon Aquino

Ex Output:
b


Ex Input:
Question: Are the well-known jazz and classical pianists that the quartet worked with both men? Passage:The Annex String Quartet, also known as The Annex Quartet, is a string quartet founded by violist Yunior Lopez in 2008 in Toronto, Ontario, Canada. Named after The Annex neighbourhood in downtown Toronto, the quartet began performing regularly in Toronto's many bars, coffee shops, and non-classical venues like Aroma Espresso Bar and the St. Lawrence Market. In 2010, they made their American debut alongside the Kronos Quartet at Carnegie Hall, and have since appeared in over 100 performances, recordings, and broadcasts. To date, the group's primary focus has been bridging the gap between classical and world music, which has led them to become one of the most eclectic performing ensembles in North America. They have performed, recorded, and ventured into various musical styles, and continue to work with a diverse range of artists including classical pianist, Jan Lisiecki, Cuban jazz pianist, Hilario Duran, and Canadian jazz icon, Jane Bunnett. Following multiple recording collaborations with a diverse range of artists, The Annex Quartet released their official debut album, The Roaring Twenties, in June 2013. The quartet's current work in progress is an all-Cuban album featuring famed Cuban Bolero singer, Anais Abreu. They are currently the ensemble-in-residence at Midtown Music School in Toronto and The Stratford Summer Music Festival in Stratford, Ontario.
 Links: a. Jan Lisiecki b. String quartet c. Jan Lisiecki d. Kronos Quartet

Ex Output:
a


Ex Input:
Question: How many hit singles did Stan Tracey have? Passage:Robert Coull Wellins was born into a showbiz family living in the Gorbals, Glasgow; he later lived in Carnwadric and attended Shawlands Academy. Wellins studied alto saxophone and harmony with his father Max, and also played piano and clarinet when young. He joined the RAF as a musician playing tenor sax. After demobilisation he played with a few Scottish bands before moving to London in the mid-1950s. He was a member of Buddy Featherstonhaugh's quintet between 1956 and 1957, together with Kenny Wheeler. Around that time Wellins also joined drummer Tony Crombie's Jazz Inc., where he first met pianist Stan Tracey, joining Tracey's quartet in the early 1960s. He also worked with Lionel Grigson in 1976. At the end of the 1970s he was a member of the Jim Richardson Quartet.
 Links: a. Stan Tracey b. Lionel Grigson c. Tony Crombie d. Buddy Featherstonhaugh

Ex Output:

a