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.

Example Input: Question: How old was the person who influenced Abani to join the revolutionary movement when they met? Passage:In 1914, Mukherji met Rash Behari Bose and joined the revolutionary movement. In 1915, he was sent to Japan to acquire weapons for the revolutionaries. According to British intelligence reports, he was active in the Hindu–German conspiracy. In September 1915, while on his return journey to India, he was arrested in Singapore and incarcerated at the Fort Canning prison there, where he remained until he escaped in the autumn of 1917. The exact details of his escape are unclear. Mukherji managed to reach Java in the Dutch East Indies, where he stayed until the end of 1919, living under the name of Dar Shaheer. In Java, he was in contact with Indonesian and Dutch revolutionaries and became a communist. He also travelled to Amsterdam and back. In Amsterdam, he met S.J. Rutgers, who recommended him as a delegate to the Second Congress of the Communist International.
 Links: a. Rash Behari Bose b. Singapore c. S. J. Rutgers d. Communism
Example Output: a

Example Input: Question: How many years after the Clairvaux was found, was the Margam Abbey founded? Passage:The abbey was founded in 1147 as a daughter house of Clairvaux by Robert, Earl of Gloucester, and was dedicated to the Blessed Virgin Mary. Early Christian crosses found in the close vicinity and conserved in the nearby Margam Stones Museum suggest the existence of an earlier Celtic monastic community. The founding abbot was William of Clairvaux. The third abbot, Conan, enjoyed the praise of Giraldus Cambrensis, whom he appears to have entertained prior to his official visit with Baldwin of Forde, Archbishop of Canterbury, to preach the Crusade in 1188. Conan (or Cunan) contributed to Patristic literature, as he is credited with the capitula or chapter-headings prefixing each section of St. Bernard's Sermons on the Song of Songs, one of the works for which that author was titled a Doctor of the Church.
 Links: a. Clairvaux Abbey b. Clairvaux Abbey c. Pilcrow d. Pilcrow
Example Output: a

Example Input: Question: Which American sport organization that used "Written in the Stars" had been in operation first? Passage:"Written in the Stars" was used by Major League Baseball for their commercials relating to the 2011 Major League Baseball Postseason. It was also chosen by WWE as its theme song for WrestleMania XXVII. Recently, it was used as the introduction to the eighth season of the South Asian Softball League. Since the 2011–12 season, it has been used as the theme song for Sky Sports' coverage of Premier League football. Samples of "Written in the Stars" can be heard in promos used for the USA Network sports-drama Necessary Roughness. The song was chosen as Miss USA 2011 Evening Gown Competition's background music. The New York Giants used the song as their entrance song in Super Bowl XLVI on 5 February 2012. It was also used in the closing ceremony of the London Olympic Games in August 2012. In May 2016, Tempah performed the song live in Wembley Stadium before the FA Cup final.
 Links: a. Major League Baseball b. Major League Baseball c. Sky Sports d. 2011 Major League Baseball season
Example Output:
a