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 old was Arrigo Sacchi when Carbone moved to Milan? Passage:Carbone had a much travelled career, playing for ten different clubs. He began his youth career with Bari, making his professional debut with the club in Serie B during the 198889 season, earning promotion to Serie A. During his first season in Serie A, he broke into the starting line-up, making 26 appearances and scoring a goal against Inter at the San Siro stadium. In 1990, he moved to Milan at the request of manager Arrigo Sacchi. During his first season with the club, he made 21 appearances in Serie A, making his club debut on 9 September 1990, in a 10 home win over Genoa in Serie A. He also made his UEFA Champions League debut, scoring a goal against Club Bruges, and he started in Milan's European Supercup and Intercontinental Cup victories in 1990.
Links: a. Genoa C.F.C. b. Arrigo Sacchi c. A.C. Milan d. Genoa C.F.C.
Example Output: b

Example Input: Question: What attributes did the goddess whose birthday was being observed commonly have associated with her? Passage:The Panathenaea (, "all-Athenian festival") was the most important festival for Athens and one of the grandest in the entire ancient Greek world. Except for slaves, all inhabitants of the polis could take part in the festival. This holiday of great antiquity is believed to have been the observance of Athena's birthday and honoured the goddess as the city's patron divinity, Athena Polias ('Athena of the city'). A procession assembled before dawn at the Dipylon gate in the northern sector of the city. The procession, led by the Kanephoros, made its way to the Areopagus and in front of the Temple of Athena Nike next to the Propylaea. Only Athenian citizens were allowed to pass through the Propylaea and enter the Acropolis. The procession passed the Parthenon and stopped at the great altar of Athena in front of the Erechtheum. Every four years a newly woven peplos was dedicated to Athena.
Links: a. Kanephoros b. Parthenon c. Peplos d. Athena
Example Output: d

Example Input: Question: Which team won the 2004-2005 UEFA Champions League? Passage:Park began his football career in his native South Korea and played for the Myongji University team before moving to Japan to play for Kyoto Purple Sanga. After Park's national team manager Guus Hiddink moved back to the Netherlands to manage PSV Eindhoven, Park followed him to the Dutch side a year later. After PSV reached the semi-finals of the 200405 UEFA Champions League, Park's talents were recognised by Manchester United manager Sir Alex Ferguson and he signed Park for a fee of around 4million in July 2005. In his time at United, Park won the Premier League four times and also won the 200708 UEFA Champions League and the 2008 FIFA Club World Cup. He moved to Queens Park Rangers in July 2012 after suffering a reduction in his number of appearances for Manchester United the previous season. However, an injury-interrupted season with QPR, combined with the club's relegation, led to Park rejoining PSV on loan for the 201314 season.
Links: a. Guus Hiddink b. PSV Eindhoven c. Alex Ferguson d. 200405 UEFA Champions League
Example Output:
d