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: In what state did McAtee play professional hockey in the NHL? Passage:Norman Joseph McAtee (June 28, 1921 – August 25, 2010) was a professional ice hockey player who played 13 games in the National Hockey League with the Boston Bruins. Born in Stratford, Ontario, he and his brother Jud played together in junior ice hockey with the Oshawa Generals during the years when the Generals dominated the Ontario Hockey League, winning championships with them in 1938–39. 1939–40 and 1940–41. At the end of the 1941 season, Norm joined his brother by signing as a free agent with the Detroit Red Wings in the NHL. However, beginning in 1942 and lasting throughout World War II, Norm became a flying officer in the Royal Canadian Air Force. After his discharge in 1945, he teamed with his brother in the Red Wings farm system before the two of them were traded to the Chicago Blackhawks for Doug McCaig in December 1945. Just over a month later, Chicago traded him to Boston for Bill Jennings, and Norm joined the Bruins for 13 games, recording one assist. After that, he finished his career in the minor leagues, ending as player-coach with the Troy Bruins in Troy, Ohio from 1951 to 1954.
 Links: a. Troy, Ohio b. Doug McCaig c. Royal Canadian Air Force d. National Hockey League
Example Output: d

Example Input: Question: How old was Norimasa kaeriyama when he directed The Glow of Life? Passage:Among intellectuals, critiques of Japanese cinema grew in the 1910s and eventually developed into a movement that transformed Japanese film. Film criticism began with early film magazines such as Katsudō shashinkai (begun in 1909) and a full-length book written by Yasunosuke Gonda in 1914, but many early film critics often focused on chastising the work of studios like Nikkatsu and Tenkatsu for being too theatrical (using, for instance, elements from kabuki and shinpa such as onnagata) and for not utilizing what were considered more cinematic techniques to tell stories, instead relying on benshi. In what was later named the Pure Film Movement, writers in magazines such as Kinema Record called for a broader use of such cinematic techniques. Some of these critics, such as Norimasa Kaeriyama, went on to put their ideas into practice by directing such films as The Glow of Life (1918), which was one of the first films to use actresses (in this case, Harumi Hanayagi). There were parallel efforts elsewhere in the film industry. In his 1917 film The Captain's Daughter, Masao Inoue started using techniques new to the silent film era, such as the close-up and cut back. The Pure Film Movement was central in the development of the gendaigeki and scriptwriting.
 Links: a. Pure Film Movement b. Kabuki c. Norimasa Kaeriyama d. The Glow of Life
Example Output: c

Example Input: Question: How big was Royal Dutch Shell the year it purchased El Aguila? Passage:DeGolyer opened a petroleum geology consultancy in 1914, moving to Montclair, New Jersey to work in New York City in 1916. In 1919, while working as a consultant to the British entrepreneur Lord Cowdray, DeGolyer negotiated the sale of the El Aguila company to Royal Dutch Shell. In the same year, DeGolyer organized the formation of the Rycade Oil Company as well as the Amerada Petroleum Corporation for Lord Cowdray, rising to become general manager, president, and chairman from 1929 to 1932 DeGolyer left the firm in 1932, but remained with Rycade, which was established to explore salt dome oil deposits through 1941. As a geophysical consultant with Rycade, DeGolyer made the first torsion balance survey in the United States at the Spindletop oilfield. An oilfield found by DeGolyer on behalf of Rycade at Nash, Texas was the first oilfield anywhere to be discovered using geophysics. From 1925 DeGolyer established the Geophysical Research Corporation as a subsidiary of Amerada to develop reflection seismology techniques originated by J. Clarence Karcher and Eugene McDermott, leaving in 1932 to move to Dallas, Texas. DeGolyer provided financial support for the 1930 establishment of GRC's successor, Geophysical Service Incorporated. GSI went on to spin off Texas Instruments. In 1936 with Lewis MacNaughton, DeGolyer established the petroleum exploration consulting firm DeGolyer and MacNaughton, and Core Laboratories, Incorporated the same year to provide drilling core and fluids analysis. DeGolyer was also associated with the Atlatl Royalty Company from 1932 to 1950 and the Felmont Corporation in 1934. In 1956 he established Isotopes, Incorporated to provide radioactive isotopes for oilfield and industrial purposes.
 Links: a. Radionuclide b. Nash, Texas c. DeGolyer and MacNaughton d. Royal Dutch Shell
Example Output:
d