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: Is the fraternity that Frank Kratovil joined still active? Passage:Frank Kratovil was born in Lanham, Maryland, spent his childhood in Prince George's County, Maryland. He is the son of Frank M. Kratovil Sr. and Lynnda Kratovil. Kratovil attended high school at Queen Anne School in Upper Marlboro and graduated in 1986. Kratovil received his bachelor's degree in 1990 from Western Maryland College. He joined Phi Delta Theta while there and played soccer, basketball and baseball. In soccer, he served as Captain for three years, was named to the Middle-Atlantic Conference All-Conference Team and received the Most Valuable Offensive Player Award and the Homer Earl Outstanding Player Award. Upon graduation, he was awarded the Bates Prize for the Most Outstanding Graduating Male, the Charles W. Havens Award, awarded to an intercollegiate athlete who "has shown by word and deeds the attributes of charity, altruism, benevolence, and a humane and compassionate concern for his fellow man", and the Carroll County Scholar-Athlete Award. Kratovil then graduated with honors from University of Baltimore School of Law in 1994. He served from 1994 to 1995 as Law Clerk for Judge Darlene G. Perry of Prince George's County Circuit Court. From 1995 to 1997 he served as Assistant State's Attorney for Prince George's County, Maryland.
 Links: a. Lanham, Maryland b. Judge c. Lanham, Maryland d. Phi Delta Theta
Example Output: d

Example Input: Question: Who is the CEO of the airline that scheduled flights to several Florida cities and Detroit? Passage:In later years, Continental Express continued to serve the airport with nonstop regional jet flights to Cleveland while Continental Connection was operating nonstop turboprop flights to Albany, NY; however, both services ended in 2005. Spirit Airlines scheduled flights to several Florida cities and Detroit, before moving to LaGuardia Airport in 2001; in May 2008 the airline resumed service to Fort Lauderdale from MacArthur only to drop it soon after. Delta Express, which had nonstops to Orlando and Fort Lauderdale, dropped MacArthur Airport in 2003 after a decline in traffic. Delta Connection regional jet service to Atlanta flown by Atlantic Southeast Airlines (ASA) on behalf of Delta Air Lines ended on May 1, 2008 following a mid-April announcement that Delta and Northwest Airlines were planning to merge – a move that led to changes for the merged airline.
 Links: a. Detroit b. Atlanta c. Spirit Airlines d. Fort Lauderdale, Florida
Example Output: c

Example Input: Question: How many years had Irving R. Kaufman been a judge by the time he presided over the trial in which Civello was sentenced to five years for conspiracy? Passage:One year after Civello ascended to power, he made a fateful trip that would shed a glaring light on him and La Cosa Nostra in Dallas for years to come. Following the assassination of Albert Anastasia, chief of one of the Five Families of New York, a meeting of mob leaders from cities throughout the United States and Canada was called in order to install Carlo Gambino as Anastasia's successor. A suspiciously large number of black Cadillacs and Lincolns in and around Apalachin, New York, the tiny Upstate New York town where the mob conference was gathering, alerted local law enforcement to investigate. Over 60 underworld bosses were detained and indicted at the Apalachin Meeting, including Civello. Noted federal judge Irving R. Kaufman presided over the 1960 trial in which Civello was sentenced to five years for a conspiracy charge stemming from the Apalachin meeting. Civello retained Houston defense attorney Percy Foreman, and the conviction was reversed on appeal in 1961.
 Links: a. Upstate New York b. Irving Kaufman c. Lincoln Motor Company d. Irving Kaufman
Example Output:
b