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 long did the state entity that  Macedonia was the political heart of  last? Passage:In 1014, after decades of war, the Byzantine Emperor Basil II scored a decisive victory over the Bulgarian Emperor Samuil in the battle of Kleidion. Samuil died of a heart attack on 6 October 1014 and the Byzantines took the opportunity to penetrate deep into Macedonia, the political heart of the Bulgarian Empire, and seized a number of important cities (Bitola, Prilep, Voden, Maglen). After the new Bulgarian Emperor Ivan Vladislav, who in 1015 assassinated Samuil's son and heir Gavril Radomir, had unsuccessfully tried to make an agreement with Basil II, he organized the defense of the country. The Bulgarians led by the Emperor, Krakra of Pernik and Ivats managed to return a number of towns and castles. The Byzantines were defeated in the battle of Bitola (September 1015) and at the siege of Pernik (summer of 1016).
 Links: a. Basil II b. Ivan Vladislav of Bulgaria c. First Bulgarian Empire d. Prilep

Output: c


Input: Consider Input: Question: Is the woman Nick romances after Felicia older or younger than her? Passage:Nick Payne arrives in town after a shipwreck. Soon, he is romancing Brooke Logan. This eventually puts him at odds with her fiancée, Ridge Forrester. Their rivalry is exacerbated when his mother, Jacqueline Payne, reveals to Nick that he is the son of his employer, billionaire shipping magnate Massimo Marone making him Ridge's half-brother. Brooke chooses to marry Ridge. They go on their honeymoon in South America, where Ridge is kidnapped by a group of thugs working for Sheila Carter, a criminal who killed Ridge's wife Taylor Hayes. While saving Ridge, Brooke and Nick end up also being held captive by Sheila, demanding gold from Massimo. Ridge falls into a furnace and is presumed dead. While grieving, Brooke and Nick have sex. It is later revealed that Ridge is alive. Brooke realizes she is pregnant and is unsure if Ridge or Nick is the father. A DNA test reveals Nick is the father but months its later revealed that Ridge is actually the father. Brooke nearly marries Nick but the wedding is stopped by Ridge. Nick later had a brief romance with Ridge's half-sister, Felicia Forrester. She returned to L.A with a son called Dominick. Later, Nick begins to romance Bridget Forrester. They get married (a small interruption in their ceremony which reveals that Taylor Hayes was alive stops the initial wedding) at the Forrester Mansion. Bridget becomes pregnant, but finds out that Nick and her own mother, Brooke, had begun an affair. She faked an abortion. Nick and Bridget's stillborn baby Nicole was born in early 2006. They split up soon after. Nick, wanting Brooke back, stopped her wedding to Ridge and succeeded. Brooke and Nick finally married soon afterward. On one of the fashion show television shows Ridge purposely gave Brooke a scandalizing kiss causing Nick to lose it. Ridge continues his constant sexual advances to Brooke to try to break up Nick and Brooke and decides to put Brooke's sister Donna Logan on as lead model for Brooke's Bedroom to make Brooke jealous. Brooke leaves Nick in their bedroom in a huff when she sees Donna on television scantily clad and representing Brooke's Bedroom and goes to Ridge's house to confront him about it. Nick later slept with Bridget. Also during this time, Jackie falls off the staircase at the Forrester mansion and falsely claims that Stephanie pushed her. Nick blackmails Eric Forrester and the rest of the Forresters into selling him Forrester Creations or Stephanie will face charges. Brooke, furious at Nick's treatment of the Forresters, sells him her stock as well, ends her marriage to Nick and returns to Ridge.
 Links: a. Bridget Forrester b. Jackie Marone c. Eric Forrester d. Bridget Forrester

Output: a


Input: Consider Input: Question: How old is the state where Cable and Wyrick are from? Passage:Tennessee Colony was established in 1847 by settlers from Tennessee and Alabama, who named their settlement for one of their home states. The first settlers who settled in the community had the last names Shelton, Avant, Hank, and Seagler. The community's fertile soil and moist climate made it feasible to grow cotton, and several plantations were established, including the Jackson Plantation, which, at one time, was one of the largest plantations in East Texas. They were extremely successful. A post office was established at Tennessee Colony in 1852. Before the Civil War, as well as after, the community fell victim to racial tensions. Two white men from Mississippi named Cable and Wyrick were accused of plotting a slave uprising in 1860, in which they encouraged slaves to kill most of the community's white residents by poisoning the water supply in the settlement. They were tried and hanged soon after. The nearby city of Palestine had the community's first railroad built there. As of 1884 Tennessee Colony boasted a population of 200 and three churches, a steam-powered gristmill, and a cotton gin. As the community's businesses moved to the nearby city of Palestine, the community's population plummeted over the next few decades. There were a few grocers and cotton gins in the area, and it eventually received a telephone connection. It functioned as a small cultural port in the 20th century. The population declined to just 100 people by 1914, rose again to 300 in 1927, but again declined during the 1930s. In 1941 there were 150 people in Tennessee Colony. A total of 21,000 acres of land was purchased just southwest of the settlement by the Texas Department of Corrections in 1965, and the first medium security prison facility named the Coffield Unit was built in the community and held approximately 2,000 prisoners. It reached its population zenith of 400 by that year. Then the Beto Unit, the community's second prison, was finished in 1984. There were factories built for fabricating metal, as well as building concrete blocks and highway signs, in these prison facilities. It also had thriving agricultural and livestock operations. It had a steady population of 120 from the 1970s to 1990. It had a population of 300 in 2000. It currently has two historical markers, with one honoring the community, and the other commemorating the community's cemetery.
 Links: a. American Civil War b. East Texas c. Gristmill d. Mississippi


Output: d