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: How long had the Chicago Cubs been a team when Mahaffey set a strikeouts record for his club? Passage:Mahaffey set a club record with 17 strikeouts in a game against the Chicago Cubs on April 23, 1961. Though he ended the season with an ERA of 4.10, and a record of 11–19 (leading the NL in losses), in 36 games, he was selected to represent the Phillies on the NL All-Star team. Mahaffey ended the season with a record of 19–14, and a 3.94 ERA, with a career high 177 strikeouts, in 41 games. He was selected again in 1962 for the NL All-Star team, finishing 26th in balloting for NL Most Valuable Player (MVP), despite leading the league in home runs allowed with 36, and earned runs allowed with 120. Mahaffey had a 7–10 record in 26 games with the Phillies, to go along with a 3.99 ERA. In , he finished the season with a record of 12–9, with an ERA of 4.52, in 34 games. The ill-fated 1964 team was in first place in the NL, with a 6-game lead, with just 12 games remaining in the season, before starting a 10-game losing streak that cost the team the pennant. Mahaffey pitched in two of the games in that infamous skid, losing a 1–0 game (the first of that losing streak) on a steal of home by Chico Ruiz of the Cincinnati Reds, and was taken out while winning 4-3 in a game against the Milwaukee Braves, in which Rico Carty hit a ninth-inning bases-loaded triple, plating all 3 runners, off of reliever Bobby Shantz, to win the game for the Braves, 6-4. was his last season in Philadelphia, which saw him finish with a 2–5 record, and an ERA of 6.21, in 22 games, mostly in relief.
 Links: a. Chicago Cubs b. 1964 Philadelphia Phillies season c. Atlanta Braves d. Chico Ruiz
Example Output: a

Example Input: Question: Who fought in the Nagorno-Karabakh War? Passage:Aram Sarkissian (Simon Abkarian) is a young French-Armenian member of AGJSA, an Armenian militant organization, who leaves his family in Paris to fight in the Nagorno-Karabakh War. In October 1993, Aram returns to France to live a "normal life" again, but finds his younger brother Levon (Mathieu Demy) preparing the assassination of Azbalan Djelik, a general of the Turkish Army visiting France. Aram opposes the assassination, claiming the Armenian struggle lies in Nagorno-Karabakh, however, Levon considers Aram to be a coward, who then reluctantly agrees. One evening, General Djelik is killed when his car is ambushed by 3 masked gunmen, who shoot and kill three of the four passengers. The survivor, Djelik's aide-de-camp Colonel Talaat Sonlez (Serge Avédikian), shoots Levon after he pretended to be dead. Levon is immobilized and enters a coma, and Sonlez is shot by the Armenians before they flee. AGJSA claims responsibility for the attack, justifying it as General Djelik was a high-ranking member of the Black Wolves, a Turkish ultranationalist organization. Talaat survives again, and searches for the assassins by asking Monsieur Paul (Gilles Arbona), a French counter-terrorism policeman monitoring the activities of AGJSA, who does not reveal their identities.
 Links: a. Counter-terrorism b. Militant c. Nagorno-Karabakh War d. Nagorno-Karabakh War
Example Output: c

Example Input: Question: Which team that played in the 2012 World Series has been in existence longer? Passage:The 2012 World Series was the championship series of Major League Baseball's (MLB) 2012 season. The 108th edition of the World Series, the series was a best-of-seven playoff between the National League (NL) champion San Francisco Giants and the American League (AL) champion Detroit Tigers; the Giants won in a four-game sweep. This marked the Giants' seventh World Series title in franchise history, their second in San Francisco (they won five in New York), and their second in a three-year period (2010–2012). Their World Series sweep was the first by an NL team since the Cincinnati Reds swept the Oakland Athletics in the 1990 series and the first NL sweep not by the Reds since 1963, when the Los Angeles Dodgers swept the New York Yankees. This was also the first World Series since 1988 to feature both of that year's League MVPs (Miguel Cabrera for the AL and Buster Posey for the NL). The Giants' Pablo Sandoval, who in Game 1 tied a record by hitting three home runs in one World Series game, two off Tigers' ace pitcher Justin Verlander, was named the World Series Most Valuable Player (MVP).
 Links: a. Miguel Cabrera b. 2012 Detroit Tigers season c. 2012 San Francisco Giants season d. Cincinnati Reds
Example Output:
c