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: 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

Output: b


Input: Consider Input: Question: How old was Anuradha Paudwal when she discovered Nikhil and Vinay  and introduced them to Gulshan Kumar? Passage:Nikhil and Vinay are both trained in classical music. Singer Anuradha Paudwal discovered the duo and recommended them to Gulshan Kumar, owner of T-Series music company, and director Chandra Barot, who signed them for the 1991 romantic film Pyar Bhara Dil. The song "Banke Kitab Teri" from the film became popular. The duo then went on to compose music for over 20 films. Their initial successes included Bewafa Sanam (1995), a film which was breakthrough for playback singer Sonu Nigam, English Babu Desi Mem (1996), Uff Yeh Mohabbat (1997) and Papa The Great (2000). The duo composed music for two of Sonu Nigam's successful music albums, Jaan (1999) and Yaad (2001). They went on to score music for Anubhav Sinha's box office success Tum Bin which included hit songs such as "Koi Fariyaad", "Chhoti Choti Raatein" and "Tumhare Siva". Some of their other successful ventures include Hum Tumhare Hain Sanam, Aapko Pehle Bhi Kahin Dekha Hai, Muskaan and Kuch Dil Ne Kaha. The duo have also been accused of plagiarism by Pakistani singer Faisal Latif.
 Links: a. Anuradha Paudwal b. Anuradha Paudwal c. Tum Bin d. Chandra Barot

Output: a


Input: Consider Input: Question: Which professor had been teaching at Urbana-Champaign longer when Fisher earned his Ph.D.? Passage:Matthew P. A. Fisher is an American theoretical physicist and Professor of Physics at the University of California, Santa Barbara, and is known for several major contributions to condensed matter physics. He completed his bachelor's degree in engineering physics from Cornell University in 1981 and earned a Ph.D. in theoretical physics from the University of Illinois at Urbana-Champaign in 1986 with Anthony Leggett as his advisor, with part of his work done under the supervision of Eduardo Fradkin. He was awarded the Alan T. Waterman Award in 1995, and in 2015 he was a recipient of the Oliver E. Buckley Condensed Matter Prize for his work on the superconductor-insulator transition. He was elected to the American Academy of Arts and Sciences in 2003 and to the National Academy of Sciences in 2012. He is a Fellow of the American Physical Society. He is the son of English physicist Michael E. Fisher, and brother of American physicist Daniel S. Fisher.
 Links: a. English people b. Cornell University c. Cornell University d. Anthony James Leggett


Output: d


