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.

[EX Q]: Question: Which professional ice hockey league that McNab ever played in was formed first? Passage:After playing junior hockey in Saskatoon, Saskatchewan, McNab played on the Omaha Knights of the USHL in the 1946–48 season before being called up to the Detroit Red Wings of the National Hockey League in 1947. He would play on and off with the Red Wings until 1951, playing on the team that won the Stanley Cup in 1950. He played for the Indianapolis Capitols of the American Hockey League in 1950–51. Before the 1951–52 season, he was traded by the Red Wings to the Chicago Black Hawks, but never played for the team. Back surgery kept him out of action in 1951–52 and McNab then joined the New Westminster Royals of the Western Hockey League, where he played for seven seasons, retiring in 1959. He was voted league MVP in 1955, scoring 32 goals and 81 points.
 Links: a. Omaha Knights (AHA) b. Saskatoon c. National Hockey League d. United States Hockey League (1945–1951)
[EX A]: d

[EX Q]: Question: Does Rentería's city of origin have a population greater than 1,000,000? Passage:Born in Barranquilla, Colombia, Rentería was signed by the Florida Marlins in 1992. He debuted with them in 1996, and he finished second to Todd Hollandsworth in Rookie of the Year Award balloting. In 1997, his RBI single off Charles Nagy in the eleventh inning of Game 7 of the 1997 World Series won the first World Series in Marlins' history. He was selected to his first All-Star Game in 1998, and he was traded to the St. Louis Cardinals following the season. He was the starting shortstop for the Cardinals for six years, and he was selected to the All-Star Game in 2000, 2003, and 2004. In 2002 and 2003 he won the Silver Slugger and Gold Glove Awards. Following the 2004 season, he signed with the Boston Red Sox. After a year with them, he was traded to the Atlanta Braves. He was selected to another All-Star Game in 2006, but following the 2007 season he was traded to the Detroit Tigers. After 2008, he became a free agent, and he signed with the San Francisco Giants. In the 2010 World Series, Rentería won the World Series Most Valuable Player Award after he hit game-winning home runs in Game 2 and Game 5. He became a free agent again after the season, and he signed with the Cincinnati Reds.
 Links: a. World Series Most Valuable Player Award b. St. Louis Cardinals c. Barranquilla d. World Series Most Valuable Player Award
[EX A]: c

[EX Q]: Question: Which spacecraft out of the Kepler, Hershel and Planck spacecrafts was the most expensive to build? Passage:Although no planetary probes were launched in 2009, four astronomical observatories were placed into orbit. The Kepler spacecraft, which was launched by a Delta II on 7 March, entered an Earth-trailing heliocentric orbit from where it will search for exoplanets. On 14 May, and Ariane 5ECA launched the Herschel and Planck spacecraft. Both were placed at the L Lagrangian point between the Earth and Sun, from where they will be used for astronomy. Herschel carries an infrared telescope whilst Planck carries an optical one. The fourth observatory to be launched was the Wide-field Infrared Survey Explorer, or WISE, which is a replacement for the Wide Field Infrared Explorer which failed shortly after launch. WISE was launched into a sun-synchronous orbit by a Delta II on 14 December, and will be used for infrared astronomy. Repairs made to the Hubble Space Telescope during STS-125 restored it to full operations after a series of malfunctions in 2008.
 Links: a. Wide-field Infrared Survey Explorer b. Heliocentric orbit c. Lagrangian point d. Kepler space telescope
[EX A]:
d