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: How old was the commander in chief when he coordinated a massive anti-guerrilla operation? Passage:In 1970, 22-year-old Crespo had dropped out of IST and was eventually drafted into military service in the Portuguese Colonial War. He transferred to Mozambique where his military occupation was to check the cement cargoes from Beira to the Cahora Bassa Dam construction site, near Tete. Some time later, due to his good fluency in English, he was placed in the press office of Kaulza de Arriaga, the commander in chief of the Portuguese Armed Forces in Mozambique, who had coordinated a massive anti-guerrilla operation against FRELIMO separatists in 1970 - the Gordian Knot Operation. While serving in the army, Crespo also entered the newly created School of Medicine of the University of Lourenco Marques where he would complete a number of academic disciplines but did not graduate. He also married Helen de Souza from Johannesburg, a South African woman with Portuguese ancestry who worked in genetics. After the Carnation Revolution left-leaning military coup at Lisbon in April 1974, fresh out of the troop, Crespo fled Mozambique for South Africa.
Links: a. Portuguese Colonial War b. Tete, Mozambique c. Kaulza de Arriaga d. Kaulza de Arriaga

Ex Output:
c

Ex Input:
Question: When did Frank Damrosch's school change names? Passage:Willson was born in Mason City, Iowa to John David Willson and Rosalie Reiniger Willson. He had a brother two years his senior, John Cedrick, and a sister twelve years his senior, the children's author Dixie Willson. Willson attended Frank Damrosch's Institute of Musical Art (which later became the Juilliard School) in New York City. He married his high school sweetheart, Elizabeth "Peggy" Wilson, on August 29, 1920. Willson, a flute and piccolo player, was a member of John Philip Sousa's band (19211923), and later the New York Philharmonic Orchestra under Arturo Toscanini (19241929). Willson then moved to San Francisco, California as the concert director for radio station KFRC, and then as a musical director for the NBC radio network in Hollywood. His on-air radio debut came on KFRC in 1928 on Blue Monday Jamboree.
Links: a. Frank Damrosch b. Mason City, Iowa c. Juilliard School d. John Philip Sousa

Ex Output:
c

Ex Input:
Question: How old was Charles Laughton when the film he starred in was shown on opening night at the super cinema on Gloucester Place? Passage:The Astoria chain was well established in London by the early 1930s. Cinemas and theatres of that name were built in Brixton (now the Brixton Academy), Finsbury Park, Charing Cross Road, Old Kent Road and Streatham. All were designed by Edward Albert Stone. The brand was soon extended to seaside resorts across southeast England at the initiative of a group of businessmen led by E.E. Lyons. ("Teddy" Lyons had opened one of Brighton's earliest cinemas, the Academy, in 1911 and was well known in the town's entertainment scene.) The group, which also included Sussex Daily News proprietor J.H. Infield (who served as chairman of the Academy Cinema until 1926), had identified a site in 1932 when they planned to open a cinema under the Plaza brand. This did not happen, but in 1933 the consortium commissioned Edward Stone to build a "super cinema" under the Astoria name there. The site was on Gloucester Place, north of Old Steine, and a number of houses from the Georgian and Victorian eras were knocked down to make way. Work began on 17 July 1933 on the 1,823-seat building, which was designed as a combined theatre and cinema with a full stage and dressing rooms. Thursday 21 December 1933 was the opening night; Cooper Rawson and Margaret Hardy, respectively Brighton's Member of Parliament and Mayor, made the inaugural speeches. These were followed by a Movietone News newsreel, features by Pathe and Disney (Santa's Workshop) and the main filmThe Private Life of Henry VIII starring Charles Laughton.
Links: a. Movietone News b. Charles Laughton c. Old Steine d. Streatham

Ex Output:
b