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: Did the highest scoring fighter ace have any siblings? Passage:After a short rest, the 90th continued across the Moselle River to take Mainz, 22 March, and crossed the rivers Rhine, the Main, and the Werra in rapid succession. Pursuit continued to the Czech border, 18 April 1945, and into the Sudetes mountain range. The division was en route to Prague when they came upon the remaining 1500 emaciated prisoners left behind by the SS at Flossenbürg concentration camp. Today, a memorial wall at the former camp honors the 90th as the liberators of Flossenbürg concentration camp. A week later, word came that the war in Europe ended on 8 May 1945. On that same day, Erich Hartmann, the highest-scoring fighter ace in history, along with a squadron of the elite Jagdgeschwader 52 fighter wing (the highest-scoring fighter wing in history), surrendered to the 90th.
 Links: a. Main (river) b. Jagdgeschwader 52 c. Prague d. Erich Hartmann

Ex Output:
d


Ex Input:
Question: Which of Hyam's male co-stars in Alias Jimmy Valentine was the oldest? Passage:She made her first film in 1924, and with her blonde hair, green eyes, delicate features, and good-natured demeanor, was cast in a string of supporting roles, where she was required to do very little but smile and look pretty. She proved herself capable of handling the small roles she was assigned, and over a period of time, she came to be taken seriously as an actress. By 1928, she was playing starring roles, achieving success in MGM's first talkie release, Alias Jimmy Valentine (1928) opposite William Haines, Lionel Barrymore, and Karl Dane. The following year, she appeared in the popular murder mystery The Thirteenth Chair, a role that offered her the chance to display her dramatic abilities as a murder suspect. At Fox that same year, she appeared in director Allan Dwan's now lost romantic adventure The Far Call opposite Charles Morton. The quality of her parts continued to improve as the decade turned, including a role as Robert Montgomery's sister in the prison drama The Big House (1930) with Chester Morris and Wallace Beery, for which Hyams once again received positive reviews. She then appeared in Surrender (1931) in which Warner Baxter and Ralph Bellamy desperately competed for her attention.
 Links: a. Lionel Barrymore b. Lionel Barrymore c. The Big House (1930 film) d. Alias Jimmy Valentine (1928 film)

Ex Output:
d


Ex Input:
Question: When was the educational institution that owns the buildings on the corner of Holywell Street and Mansfield Road established? Passage:New College dominates the south side of the street. At the western end of the street is the King's Arms public house on the north corner, a favourite with Oxford University students, and the Indian Institute (now the home of The James Martin 21st Century School) to the south. On the north side is the Holywell Music Room, an historic chamber music venue built in 1742. Opposite a small cul-de-sac, Bath Place, leads via a small winding footpath to the historic Turf Tavern public house close to the old city wall. The wall remains, in places, and follows the course of Holywell Street to the south, partly through New College. The buildings on the corner of Holywell Street and Mansfield Road, along with the Alternative Tuck Shop, are owned by Harris Manchester College, and are used as student accommodation.
 Links: a. Chamber music b. Harris Manchester College, Oxford c. Harris Manchester College, Oxford d. Holywell Music Room

Ex Output:

b