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 driver who passed the pole-sitter ten laps into the race older than the drive he passed? Passage:Ten laps into the race, Michael Waltrip passed pole-sitter Jeff Gordon for the lead. On Lap 19, the caution flag was thrown after a multi-car accident. Waltrip continued leading until Lap 55, in which Dale Earnhardt Incorporated teammate Dale Earnhardt, Jr. After Bobby Hamilton, Jr. had an accident on Lap 70, Earnhardt led the race into pit road, but was pushed out by Gordon and Brian Vickers, and fell to fifteenth, giving Mike Wallace the lead entering Lap 74. Shepherd pitted on the following lap, and Morgan Shepherd took the lead. However, Shepherd would later pit, as Gordon regained the lead. Waltrip then retook the lead from Gordon on Lap 86, though Gordon then took the lead again 13 laps later. Ten laps later, Gordon pitted, and Waltrip was given the lead. On the ensuing lap, Earnhardt took the lead, though he later pitted, and Jimmy Spencer gained the lead. On Lap 113, Spencer lost the lead to Gordon when he pitted, who led the pit stops on Lap 139. Dave Blaney stayed out, and took the lead, though Ryan Newman gained first-place when Blaney went to pit road. Newman pitted on Lap 143, giving Tony Stewart the lead. With ten laps left in the race, Hendrick Motorsports teammates Jeff Gordon and Jimmie Johnson followed in third and fourth, respectively, behind Tony Stewart and Dale Earnhardt, Jr. Johnson then pushed Gordon past Stewart and Earnhardt, and Gordon subsequently won, his fourth of the season and second consecutive. The victory by Gordon made him the first driver since Cale Yarborough to win the Pepsi 400 from the pole. A version of the race's waning moments was included in the prologue of the video game , which involved Johnson pushing Gordon past Earnhardt.
 Links: a. Michael Waltrip b. Jeff Gordon c. Dale Earnhardt Jr. d. Tony Stewart
Example Output: a

Example Input: Question: Who was older during their time at Sports Fan Radio Network, Pete Rose or Pat O'Brian? Passage:By 1994, SportsFan expanded to a 24/7 format, seven days a week. The signature show, SportsFan Tonight moved its broadcast location from the MGM Grand Las Vegas in 1994. Later it moved to the sportsbook at the Mandalay Bay. The daily line up included baseball's all-time hit leader Pete Rose, as well as a stable of young talent. Others hosting shows over the years included former NFL QB Sean Salisbury, former NFL All-Pro Tim Ryan, Fox and CBS host James Brown, longtime broadcaster Pat O'Brien, former NBA coach Matt Goukas, NHL great Phil Esposito, former NFL All-Pro Bob Golic and former NCAA basketball coaches Bill Frieder and Fran Fraschilla. Other hosts included Bruce Schein, Chris Russo (now Russell), J. T. the Brick, Steve Cofield, Rob Tepper, Chuck Powell, Ryan Williams,Marty Tirrell, Ken Miller, Soren Petro, Rob Fischer, Mike "The Sports Pig" Responts, John Phillips, John Rabe, Brandon Tierney, Jim Brinson, Chad Andrus. Scott Ferrall, Dave Cokin, Eric Pollero, Tim Neverett and others. By the late '90s, SportsFan partnered with CBS Sportsline to broadcast two shows daily. One program was hosted by Craig Carton, the other "The Drive" with Scott Kaplan and Sid Rosenberg. Later they landed a handful of other significant names, including Nanci Donellan (a.k.a. "The Fabulous Sports Babe") from ESPN Radio. Keith Olbermann also hosted a few shows.
 Links: a. Phil Esposito b. Sean Salisbury c. Pete Rose d. Keith Olbermann
Example Output: c

Example Input: Question: What is the home stadium of the team that defeated Rivière's team 3-1 after he netted his first goal of the season? Passage:Due to the departure of Gomis, injuries to strikers Ilan and Kevin Mirallas, and the late arrival of the Argentine Gonzalo Bergessio, Rivière started the 2009–10 season as the club's first choice striker. On 15 August, Rivière netted his first goal of the season in the club's 3–1 loss to Toulouse. Following the inclusion of Bergessio into the team, Rivière shifted to the winger role. On 9 January 2010, he scored the opening goal in Saint-Étienne's 4–1 cup victory over Lorient. The following week, he scored the game-winning goal in a 2–1 victory over Grenoble. In February and March, Rivière performed valiantly, scoring five goals in seven matches and also assisting on a goal. Saint-Étienne only lost one of the seven matches played during the span, which lifted the club out of the relegation zone. Rivière scored opening goals in matches against Lyon and Lille, both of which ended in a draw, and scored the game-winning goal against Montpellier. On 5 May, Rivière netted another game-winning goal, this time against Boulogne. The 1–0 result assured Saint-Étienne another campaign in Ligue 1 and also relegated Boulogne.
 Links: a. Kevin Mirallas b. Lille OSC c. Toulouse FC d. Gonzalo Bergessio
Example Output:
c