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: Who is the mayor of the town where the KFI studios were located? Passage:Ellsworth moved his family to the Southern California/Los Angeles region settling in the Reseda area in the San Fernando Valley, just north of the KFI, Burbank studios. He worked for KFI radio and then KCBS-FM in 1973. He later worked for KCOP-TV as a newscaster, sportscaster, writer, announcer and talk show host for several years. At KCOP-TV Ellsworth produced, wrote and hosted Daybreak and Who Can I Turn To which were weekly talk shows dealing with financial and medical topics. For 2 years he was the talk show host for KNX-TV's (Los Angeles) Noontime midday show. In 1974 Ellsworth lent his talent to the Toshiko Akiyoshi/Lew Tabackin Big Band album Kogun. His voice is heard on the track Memory as part of a narrative and story telling relating to Japanese folklore. Memory is also included on the 2008 Mosaic 3 CD compilation, .
 Links: a. Southern California b. CBS c. Burbank, California d. Southern California
Example Output: c

Example Input: Question: What was the population of Southampton when Charles Ogston first arrived there? Passage:Ogston was the son of Alexander Milne Ogston of Ardoe, Kincardineshire. He was educated at the Royal Military College, Sandhurst and commissioned a second lieutenant in the Gordon Highlanders in November 1897. He served on the North-West Frontier of India from 1897 to 1898 and took part in the Tirah Campaign under Sir William Lockhart. Promoted to lieutenant on 21 July 1899, he was later the same year sent to South Africa to serve as an intelligence officer in the Second Boer War. He took part in the Relief of Kimberley (February 1900), including the Battle of Magersfontein (11 December 1899), followed by fighting in the Orange Free State from February to May 1900, including the Battle of Paardeberg (18–27 February 1900). In May 1900 he was posted to the Transvaal Republic, where he took part in the occupation of Johannesburg and Pretoria, the capital of the republic, followed by service around the occupied areas, including the Battle of Bergendal (August 1900) and fighting near Lydenburg. He was promoted to captain on 22 January 1902, and following the end of hostilities in early June 1902 left Cape Town on board the SS Orotava, arriving at Southampton the next month.
 Links: a. Siege of Kimberley b. Battle of Bergendal c. Southampton d. Southampton
Example Output: c

Example Input: Question: What is the population of the city where Chico Alencar received the most vote as a congressman of Socialism and Liberty Party? Passage:In 2010 Wyllys was elected a federal MP, representing the Socialism and Freedom party, with an average of 13,000 votes. His election was only possible, considering the number of votes he had in 2010 elections, through the so-called "voto de legenda" (party vote), a constitutional mechanism that allows candidates who don't have a large number of votes to be elected through votes of another highly voted candidate of the same party. In Wyllys's case, the votes of another congressman of Socialism and Liberty Party, Chico Alencar, who was one of the most voted in Rio de Janeiro, helped in his election. Upon occupying a seat in the Brazilian Congress, Wyllys brought his LGBT movement activism to the scene. He started working on his political platform, which was primarily focused on the fight for LGBT rights. In so doing, he ended up confronting prominent Brazilian right-wing figures, such as pastor Silas Malafaia, a famous televangelist and national president of the Assembly of God Churches, and Jair Bolsonaro, a congressman who became Wyllys's nemesis in the Brazilian Congress. Wyllys came to the point of spiting on congressman Bolsonaro during the voting of President Dilma Roussef's impeachment. In Congress, Wyllys proposed three controversial pieces of legislation, including the regulation of prostitution, the legalization and government regulation of marijuana production, and the government financing of sex reassignment surgeries and hormonal treatment for transgender teenagers and adults.
 Links: a. Rio de Janeiro b. Transgender c. LGBT social movements d. National Congress of Brazil
Example Output:
a