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 20th Centuy Fox been established when they signed Holm to a movie contract? Passage:After she starred in the Broadway production of Bloomer Girl, 20th Century Fox signed Holm to a movie contract in 1946. She made her film debut that same year in Three Little Girls in Blue, making a startling entrance in a "Technicolor red" dress singing "Always a Lady," a belting Ado Annie-type song, although the character was different—a lady. In 1947 she won an Oscar and Golden Globe for Best Supporting Actress in Gentleman's Agreement. However, after another supporting role in All About Eve, Holm realized she preferred live theater to movie work, and only accepted a few select film roles over the next decade. The most successful of these were the comedy The Tender Trap (1955) and the musical High Society (1956), both of which co-starred Frank Sinatra. She starred as a professor-turned-reporter in New York City in the CBS television series Honestly, Celeste! (fall 1954) and was thereafter a panelist on Who Pays? (1959). She also appeared several times on ABC's The Pat Boone Chevy Showroom. 
 Links: a. Three Little Girls in Blue b. Bloomer Girl c. The Pat Boone Chevy Showroom d. 20th Century Fox
Example Output: d

Example Input: Question: Which of the three emperors who Ji served lived longest? Passage:Jiang Ji (died 18 May 249), courtesy name Zitong, was an official and military general of the state of Cao Wei during the Three Kingdoms period of China. Born in the late Eastern Han dynasty, Jiang Ji started his career as a low-level official in his native Yang Province before becoming a subordinate of Cao Cao, the warlord who controlled the central government towards the end of the Eastern Han dynasty. After the end of the Eastern Han dynasty, he served in the state of Cao Wei through the reigns of the first three emperors – Cao Pi, Cao Rui and Cao Fang – and held various appointments in the military before rising to Grand Commandant, one of the top positions in the central government. During his service in Wei, he was known for being candid in giving advice to the emperor on various issues, including consolidating power, halting labour-intensive construction projects, and officials' abuses of power. In February 249, he joined the regent Sima Yi in staging a successful coup d'état against his co-regent Cao Shuang, but died from illness a few months later.
 Links: a. Cao Pi b. Cao Shuang c. Courtesy name d. Incident at the Gaoping Tombs
Example Output: a

Example Input: Question: Is the team that Daems scored his only goal against during the 2009-2010 season still playing in the top tier division? Passage:In January 2005, Daems signed for German club Borussia Mönchengladbach, penning a contract till June 2008. In his first season with the club, he played 11 times without scoring a goal. He would play the first match of the 2005–06 season against Schalke 04 in single goal draw. He would end the season featuring 22 times for the German club. However, he spent the 2006–07 season with the reserves, Borussia Mönchengladbach II, in the Regionalliga Nord, the then third tier of German football. For the 2007–08 season, the club played in 2. Bundesliga and Daems even scored a goal against 1. FC Köln. Mönchengladbach won the second tier and gained promotion to the 2008–09 Bundesliga. During that season, he scored two goals, one against Eintracht Frankfurt and one against Bayern Munich. In the 2009–10 season, he played 18 times scoring one goal. The goal was scored against TSG 1899 Hoffenheim, where he scored a 31st-minute penalty. In the 2010–11 season, he played the whole ninety minutes of each of the thirty-four league matches. Daems also scored four times against Schalke 04, VfL Wolfsburg, Hoffenheim and Köln.
 Links: a. FC Bayern Munich b. Eintracht Frankfurt c. TSG 1899 Hoffenheim d. 2008–09 Bundesliga
Example Output:
c