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: Which ground did the Liverpool Football Club play at longer, Anfield or Goodison Park? Passage:Liverpool Football Club is an English association football club based in Liverpool, Merseyside, which competes in the top tier of English football, for the 201920 season. The club was formed in 1892 following a disagreement between the board of Everton and club president John Houlding, who owned the club's ground, Anfield. The dispute over rent resulted in Everton leaving Anfield for Goodison Park, which left Houlding with an empty stadium. Not content for his ground to lay idle, he created his own club: Liverpool. Liverpool joined the Lancashire League on their foundation before the 189293 season. They ended their inaugural season as league champions, and were elected to The Football League soon afterwards. The club remained in The Football League until 1992, when its First Division was superseded as English football's top level by the newly formed Premier League.
Links: a. Goodison Park b. Anfield c. Liverpool F.C. d. Association football

Ex Output:
a

Ex Input:
Question: Who was the leader of Solidarity in 1991? Passage:The 1991 Polish parliamentary election was held on 27 October 1991 to elect deputies to both houses of the National Assembly. The 1991 election was notable on several counts. It was the first parliamentary election to be held since the formation of the Third Republic, the first entirely free and competitive legislative election since the fall of communism, the first completely free legislative election of any sort since 1928, and only the fifth completely free election in all of Polish history. Due to the collapse of the Solidarity movement's political wing, the 1991 election saw deep political fragmentation, with a multitude of new parties and alliances emerging in its wake. Low voting thresholds within individual constituencies, along with a five percent national threshold allocated to a small portion of the Sejm, additionally contributed to party fragmentation. As a result, 29 political parties gained entry into the Sejm and 22 in the Senate, with no party holding a decisive majority. Two months of intense coalition negotiations followed, with Jan Olszewski of the Centre Agreement forming a minority government along with the Christian National Union, remnants of the broader Center Civic Alliance, and the Peasants' Agreement, with conditional support from Polish People's Party, Solidarity and other minor parties.
Links: a. Solidarity (Polish trade union) b. Solidarity (Polish trade union) c. Jan Olszewski d. Centre Agreement

Ex Output:
a

Ex Input:
Question: In what country was Riessiger the pupil of Peter von Winter? Passage:Reiiger attended the Thomasschule zu Leipzig and was the pupil of Johann Gottfried Schicht and Peter von Winter. In 1821, he followed the example of the young Beethoven and went to Vienna to study with Antonio Salieri and also studied theology at the University of Leipzig. Reiiger continued his musical studies in France and Italy in 1824, under the sponsorship of the Prussian Ministry of Cultural Affairs. After working for two years as the musical director of the Dresden Opera, he succeeded Carl Maria von Weber as the Kapellmeister of the Dresden Court in 1828, and would hold this office until his death in 1859. A famous piece known as Weber's Last Waltz was actually written by Reiiger (one of his opus 26 Danses brillantes) and is mentioned in Edgar Allan Poe's The Fall of the House of Usher (1839) as one of Roderick Usher's favorite pieces of music; it is also the title of a 1912 film.
Links: a. Edgar Allan Poe b. Kingdom of Prussia c. St. Thomas School, Leipzig d. Peter Winter

Ex Output:
c