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 of Messner's teachers at the University of Munich was older? Passage:After Meissner’s abitur at the Humanistisches Gymnasium, in 1910, he began the study of physics and mathematics at University of Tübingen. After three terms, he went to the University of Munich as a student of the experimentalist Wilhelm Röntgen and the theoretician Arnold Sommerfeld. After one year at Munich, he returned to Tübingen to be able to study spectroscopy with Friedrich Paschen. While still a student in 1914, Meissner was able to prove the existence of oxygen lines in the solar spectrum. He was awarded his doctorate in 1915, on a thesis with the title Interferometrische Wellenlängenbestimmung im infraroten Spektralbereich. In 1916 he became an assistant to Edgar Meyer at the University of Zurich, under whom he completed his Habilitation, in 1918, with the Habilitationsschrift title Untersuchungen des Neonspektrums. The following year, he married the Polish physicist Doctor Janka Kohn.
 Links: a. Habilitation b. Ludwig Maximilian University of Munich c. University of Tübingen d. Wilhelm Röntgen

Ex Output:
d


Ex Input:
Question: In what modern day state is the chruch located in? Passage:The neighborhood is just west of the Federal Hill community and commercial district connected by West Hamburg Street, which is along South Charles and Light Streets, and the famous hill itself, which was the site of a celebratory picnic in 1788 after a parade of the various guilds, organizations and military units of old "Baltimore Town" to commemorate the ratification by Maryland of the new Federal Constitution, and later fortified with earthen embankments and large cannons of artillery by Northern troops of the Union Army a month after, during the Civil War to keep a close watch on and control on the Southern-sympathizing citizens of the City who had erupted in April 1861, in a riot attacking passing Massachusetts and Pennsylvania troops from the President Street Station on the east side from Philadelphia and the North, on their way to the nearby (a few blocks away with the Washington tracks running right by the Church) Camden Street Station of the famous Baltimore and Ohio Railroad to defend the National Capital of Washington from the newly seceded Virginians and Confederates.
 Links: a. Federal Hill, Baltimore b. History of Maryland c. History of Maryland d. History of Massachusetts

Ex Output:
a


Ex Input:
Question: What year was the competition Preston won in August 2012 first played? Passage:King experienced full-time professional football for the first time when he signed for League One side Preston North End on a one-year deal in July 2012. Preston manager Graham Westley had previously scouted King several times whilst he managed Stevenage, but felt he was too similar a player to Michael Bostwick, and therefore no move materialised at the time. King made his debut for Preston in a 2–0 victory over Huddersfield Town in the League Cup on 13 August 2012, a game in which he scored the opening goal of the match courtesy of a header. King adjusted well to playing in the Football League for the first time in his career, scoring three times in four games in the opening months of the season; two coming in league victories over Hartlepool United and Doncaster Rovers respectively, and the other in a 3–1 League Cup loss to Middlesbrough at Deepdale. He added his fifth goal of the season when his deflected shot found in the net in Preston's 4–1 win against Stevenage on 10 November 2012. King was on the scoresheet once again a month later, scoring with a powerful shot in a 3–3 Football League Trophy penalties win over Bury on 18 December 2012. King remained a regular feature under new manager Simon Grayson, and scored his first goal under Grayson's management in Preston's comfortable 3–0 victory against Scunthorpe United on 6 April 2013 when he headed in Jeffrey Monakana's cross to seal the win. He played 47 times during the 2012–13 campaign, scoring seven times, as Preston finished the season in 14th place.
 Links: a. Preston North End F.C. b. EFL Cup c. EFL Cup d. Stevenage F.C.

Ex Output:

b