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: Where was the Jesuit priest who was hanged after the 1584 Act against Jesuits born? Passage:More than 300 Roman Catholics were put to death by English governments between 1535 and 1681 for treason, thus for secular rather than religious offenses. In 1570, Pope Pius V issued his papal bull Regnans in Excelsis, which absolved Catholics from their obligations to the government. This dramatically worsened the situation of the Catholics in England. English governments continued to fear the fictitious Popish Plot. The 1584 Parliament of England, declared in "An Act against Jesuits, seminary priests, and such other like disobedient persons" that the purpose of Jesuit missionaries who had come to Britain was "to stir up and move sedition, rebellion and open hostility". Consequently, Jesuit priests like Saint John Ogilvie were hanged. This somehow contrasts with the image of the Elizabethan era as the time of William Shakespeare, but compared to the antecedent Marian Persecutions there is an important difference to consider. Mary I of England had been motivated by a religious zeal to purge heresy from her land, and during her short reign from 1553 to 1558 about 290 Protestants had been burned at the stake for heresy, whereas Elizabeth I of England "acted out of fear for the security of her realm."
 Links: a. List of Protestant martyrs of the English Reformation b. John Ogilvie (saint) c. Treason d. John Ogilvie (saint)
Example Output: b

Example Input: Question: Who was the number one pick of the 1991 NHL Draft? Passage:Holzinger was drafted in the sixth round, 124th overall, by the Buffalo Sabres in the 1991 NHL Entry Draft. He played High School Hockey at Padua Franciscan High School in Parma, Ohio and four years of college hockey at Bowling Green State University, and was the recipient of the Hobey Baker Award for top men's collegiate hockey player during his senior season. He made his National Hockey League debut with the Sabres during the 1994–95 season, appearing in four regular season games and four playoff games (scoring two goals during the Sabres' playoff series against the Philadelphia Flyers). After four and a half seasons with the Sabres, he was traded at the trade deadline of the 1999–2000 season (along with Cory Sarich and Wayne Primeau) to the Tampa Bay Lightning in exchange for Chris Gratton and a second-round draft pick.
 Links: a. Chris Gratton b. Buffalo Sabres c. 1991 NHL Entry Draft d. 1991 NHL Entry Draft
Example Output: c

Example Input: Question: How many soldiers are in the unit tasked with flying C-17s at Hickam? Passage:After World War II, the Air Force in Hawaii consisted primarily of the Air Transport Command and its successor, the Military Air Transport Service (MATS), until 1 July 1957 when Headquarters Far East Air Forces completed its move from Japan to Hawai‘i and was redesignated the Pacific Air Forces (PACAF). The 15th Air Base Wing, host unit at Hickam AFB, supported the Apollo astronauts in the 1960s and 1970s; Operation Homecoming (return of prisoners of war from Vietnam) in 1973; Operation Babylift / New Life (movement of nearly 94,000 orphans, refugees, and evacuees from Southeast Asia) in 1975; and NASA's space shuttle flights in the 1980s and 1990s. Hickam is home to the 65th Airlift Squadron which transports theater senior military leaders throughout the world in the C-37B and C-40 Clipper aircraft. In mid-2003, the 15th Air Base Wing (15 ABW) was converted to the 15th Airlift Wing (15 AW) as it prepared to beddown and fly the Air Force's newest transport aircraft, the C-17 Globemaster III. The first Hickam-based C-17 arrived in February 2006, with seven more to follow during the year. The C-17s will be flown by the 535th Airlift Squadron.
 Links: a. 535th Airlift Squadron b. Apollo program c. Pacific Air Forces d. Pacific Air Forces
Example Output:
a