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: What year was Georgia Southern founded? Passage:The Georgia Southern Eagles football program represents Georgia Southern University in football as part of the Sun Belt Conference under head coach Chad Lunsford. The Eagles have won six FCS (I-AA) national championships and have produced two Walter Payton Award winners. The Eagles first continuously fielded a football team in 1924; however, play was suspended for World War II and revived in 1981. The Eagles competed as an FCS independent from 1984 until 1992 as the Eagles' main conference at the time, the Trans America Athletic Conference (now known as the Atlantic Sun Conference), did not sponsor football, and as a member of the Southern Conference from 1993 until 2013, winning 10 SoCon championships. Georgia Southern joined the Sun Belt Conference upon transitioning to the FBS level in 2014. The Eagles won the Sun Belt Conference championship outright in its first year as an FBS member. Georgia Southern's main Sun Belt rival is Appalachian State.
 Links: a. World War II b. Georgia Southern University c. Atlantic Sun Conference d. Atlantic Sun Conference
Example Output: b

Example Input: Question: Which of the German university towns that Alberico went to is the largest? Passage:After his graduation, he was elected as the chief judge of Ascoli, but he then settled in his native town, where he filled various responsible offices. Both father and son belonged to a confraternity suspected of meeting for the discussion of opinions hostile to the Roman church. The Inquisition was upon the track of the heretics, and Gentili, together with his father and one of his brothers, Scipione Gentili, were forced to leave Italy because of their Protestant beliefs. The three first went to Ljubljana (German: Laibach), now in Slovenia, the capital of the duchy of Carniola. From there, Alberico went on to the German university towns of Tübingen and Heidelberg. At their first halting place, Ljubljana, Matteo, doubtless through the influence of his brother-in-law, Nicolo Petrelli, a jurist high in favour with the court, was appointed chief physician for the duchy of Carniola. In the meantime, the papal authorities had excommunicated the fugitives and soon procured their expulsion from Austrian territory. Early in 1580, Alberico set out for England, preceded by a reputation that procured him offers of professorships at Heidelberg and at Tübingen, where Scipio was left to commence his university studies. Alberico reached London in August, with introductions to Giovanni Battista Castiglione, the Italian tutor to Queen Elizabeth I. Gentili soon became acquainted with Dr Tobia Matthew, the Archbishop of York. On 14 January 1581, Gentili was accordingly incorporated from Perugia as a D.C.L. giving Gentili the right of teaching law, which he first exercised in St John's College, Oxford. Subsequently, Gentili was appointed as the Regius professor of civil law at Oxford University by the Chancellor of Oxford University, Robert Dudley, 1st Earl of Leicester. He was commissioned to prepare a revised version of the statutory laws of his home town, a task which he completed in 1577. After a short stay in Wittenberg, Germany, he returned to Oxford.
 Links: a. Scipione Gentili b. Heidelberg c. Robert Dudley, 1st Earl of Leicester d. Archbishop of York
Example Output: b

Example Input: Question: Who became president of the United States after Coolidge left office? Passage:Calvin Coolidge (born John Calvin Coolidge Jr.; ; July 4, 1872 – January 5, 1933) was an American politician and lawyer who served as the 30th president of the United States from 1923 to 1929. A Republican lawyer from New England, born in Vermont, Coolidge worked his way up the ladder of Massachusetts state politics, eventually becoming governor of Massachusetts. His response to the Boston Police Strike of 1919 thrust him into the national spotlight and gave him a reputation as a man of decisive action. The next year, he was elected vice president of the United States, and he succeeded to the presidency upon the sudden death of Warren G. Harding in 1923. Elected in his own right in 1924, he gained a reputation as a small government conservative and also as a man who said very little and had a rather dry sense of humor.
 Links: a. President of the United States b. Boston Police Strike c. New England d. Warren G. Harding
Example Output:
a