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.

Input: Consider Input: Question: How many days did the battle the Baron was killed in last? Passage:While they were travelling to Europe in 1914, the First World War broke out and the ship carrying Von Wolf and his wife was diverted to Rio de Janeiro. Jayta Humphreys had retained her American citizenship and found passage to Europe on a Dutch ship; legend has it the Baron had to travel disguised as a woman. On arrival in Europe the Baron rejoined the German army, and was killed at the Battle of the Somme in 1916, just two weeks after signing up. His wife could not bring herself to return to Namibia alone and never again laid claim to the majestic castle. She stayed on the coast of the Tegernmeer in Bavaria (since her stepfather had been appointed consul general in Munich), before settling in the late 1930s in Zurich, where she met and married Erich Schlemmer, the consul general of Siam. After the Von Wolfs left South Africa, their friend Max Count von Lüttichau was given executorship of the farm, but it declared bankruptcy shortly after World War I, and since the South African government paid no compensation for this or several wartime raids, the house was sold for £7,500 to the Swedish Murrmann family. The new owner died shortly after his arrival and his son was killed in World War II, following which the castle was sold for 25,000 pounds to the private company Duwisib Pty Ltd and the rest of the land was divided and sold off. Jayta returned to the US to stay with her parents in Summit, New Jersey. Several changes in ownership later, the castle was acquired by the government in 1979 and extensively refurbished in 1991.
 Links: a. Rio de Janeiro b. Europe c. Europe d. Battle of the Somme

Output: d


Input: Consider Input: Question: In which city is the headquarter of the automaker that employed Bagot located? Passage:After the war he spent another eight years organising tourist services between Iraq, Persia (now Iran) and Syria for the Mesopotamian Trading Agency of Ashar, Basrah. His wife may have joined him in 1924. He returned to South Australia in 1926 with the intention of setting up a regular service between Adelaide and Darwin via Oodnadatta and Alice Springs. He conducted a demonstration run with eight men and four women in three Studebaker cars and a Thornycroft truck, leaving Adelaide on 18 May and arrived in Darwin on 3 June; left there on 7 June and returned to Adelaide on 25 June, travelling via Camooweal, Queensland and Marree, South Australia, publicised by Duncan and Fraser (agents for both Thornycroft and Studebaker) and as they were equipped with a short-wave transceiver, gave nightly reports on radio 5CL. Despite a second successful round trip that year, Bagot abandoned his idea of regular service when the Commonwealth Government turned down his application for a subsidy. He found employment with General Motors and in 1930 "Captain Bagot" as he was called by admirers (or "'Alphabetical Bagot' as he was known to the many who disliked him), founded the Citizens' League of South Australia, which opposed Unionism, Communism and the White Australia Policy as benefiting the working classes, yet also opposing Fascism. This was the time of the Great Depression and he also supported the Young People's Employment Council and the Rev. Samuel Forsyth's (1881–1960) Forsyth Industrial Colony "Kuitpo Colony" near Kuitpo Forest, which was training boys as farm workers. The Citizen's League attempted political influence by promising support to political candidates, and was a factor in the election of the Independent candidate George Connor to the Assembly seat of Alexandra in 1934.
 Links: a. Alice Springs b. General Motors c. Camooweal d. Samuel Forsyth (Methodist)

Output: b


Input: Consider Input: Question: Of System of a Down's double albums to debut at Number 1 in the US, which came first? Passage:The second part of the double album, Hypnotize, was released on November 22, 2005. Like Mezmerize, it debuted at No. 1 in the US, making System of a Down, along with The Beatles, Guns N' Roses, and rappers 2Pac and DMX, the only artists to ever have two studio albums debut at No. 1 in the same year. In February 2006, System of a Down won the Grammy for Best Hard Rock Performance for "B.Y.O.B.", beating out other established artists such as Nine Inch Nails and Robert Plant. Their second single off the Hypnotize album, "Lonely Day" was released in March in the United States. System of a Down released "Kill Rock 'N Roll" and "Vicinity of Obscenity" as their next promo singles. The band headlined Ozzfest 2006 in cities where tour founder Ozzy Osbourne opted not to appear or was not playing on the main stage (with the exception of the show at Randall's Island, where Ozzy Osbourne headlined the second stage before System of a Down's performance that night).
 Links: a. Mezmerize (album) b. B.Y.O.B. (song) c. Hypnotize (album) d. Hypnotize (album)


Output: c