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 was the first to receive the award Hampton was given for his military service? Passage:James Hampton was born in 1909 in Elloree, South Carolina as one of four children to James Sr. and Sarah (Johnson) Hampton. His father, who had abandoned the family, was a gospel singer and a traveling Baptist preacher but also a known criminal who had worked on chain gangs. In 1928, Hampton moved to Washington, D.C. and shared an apartment with his older brother Lee. Hampton worked as a short-order cook until 1943 when he was drafted into the United States Army Air Forces. He served with the 385th Aviation Squadron in Texas, Hawaii, and in the jungles of Saipan and Guam. The segregated unit was noncombatant and duties included carpentry and maintenance of airstrips. Hampton built a small shrine-like object during his time in Guam which he incorporated into his larger artwork later. He was awarded the Bronze Star, honorably discharged in 1945 and returned to Washington, D.C. In 1946, Hampton was hired by the General Services Administration as a janitor and worked there until his death.
 Links: a. Chain gang b. Racial segregation c. Bronze Star Medal d. Hawaii
Example Output: c

Example Input: Question: What was the first award that Iron Maiden received from the Metal Hammer Golden Gods Awards? Passage:In 1994, one of their singles, "Fear of the Dark", received a Grammy nomination for Best Metal Performance. Seven years later, the band were nominated again in that category, with the song "The Wicker Man". In 2011, Iron Maiden won the award with "El Dorado". In 2002, they won the Ivor Novello Award for international achievement. Iron Maiden received a nomination from the Kerrang! Awards in the "Best Live Act" category in 2003, and were inducted into the Kerrang! Hall of Fame two years later. At the 2006 Metal Storm Awards, A Matter of Life and Death was named the best heavy metal album of the year. Iron Maiden have also received nine awards from fourteen nominations at the Metal Hammer Golden Gods Awards. Their mascot Eddie, who has previously been used by US critics to argue that Iron Maiden are Satanists, received a Golden Gods nomination in 2006, losing to singer Cristina Scabbia; but was awarded in 2008. Later in 2008, Iron Maiden were nominated in the Best Live Return category at the Vodafone Live Music Awards, to which the band disagreed with their nomination and asked to be withdrawn, stating that they were "not quite sure where we are returning from." They were replaced by the band James. The band were named "Best British Live Act" at the 2009 BRIT Awards, winning via a public poll. They were not able to attend the ceremony, ironically due to touring duties, instead delivering an acceptance message by video link-up. Their film  won, in the category "24 Beats Per Second", at the SXSW film Festival, held in Austin, Texas, in March 2009. Overall, Iron Maiden have received twenty-nine awards from thirty-nine nominations.
 Links: a. Texas b. The Wicker Man (song) c. Vodafone d. Metal Hammer
Example Output: d

Example Input: Question: When did the international organization that Edwards worked from form 1993 to 1996 first established? Passage:Sebastián Edwards (born 16 August 1953, Santiago, Chile) a member of the Edwards family is a Chilean economist, professor, speaker, and consultant. He is currently the Henry Ford II Professor of International Business Economics at the UCLA Anderson School of Management at the University of California, Los Angeles (UCLA). From 1993 until April 1996, he was the Chief Economist for the Latin America and Caribbean Region of the World Bank. He is also a research associate of the National Bureau of Economic Research (NBER), a member of the advisory board of Transnational Research Corporation and co-chairman of the Inter American Seminar on Economics (IASE). He is the Past President of the Latin American and Caribbean Economic Association (LACEA), an international professional association of economists with academic interests in Latin America and the Caribbean region. He was a member of the Scientific Advisory Council of the Kiel Institute of World Economics, Kiel-Germany. He is a member of California Governor Arnold Schwarzenegger's Council of Economic Advisors.
 Links: a. National Bureau of Economic Research b. UCLA Anderson School of Management c. Santiago d. World Bank
Example Output:
d