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 did the king who was painted by Jan Matejko rule Poland? Passage:Modern history accepts this gateway as one of three constructed by Yaroslav the Wise. The golden gates were built in 1017-1024 (6545 by the Byzantine calendar) at about the same time the Saint Sophia Cathedral was erected. Mentions of an older construction, such as the one presented on a painting by Jan Matejko of king Bolesaw I of Poland striking the Golden Gate with his sword during the intervention in the Kievan succession crisis in 1018, it is now regarded a legend. Originally named simply the Southern Gate, it was one of the three main entrances to the walled city, along with the Ladski and Zhydivski (Polish and Jewish) Gates. The last two have not survived. The stone fortifications stretched for only 3.5 km. The fortification of the Old Kyiv (Upper City) stretched from the Southern Gates down to what is now Independence Square and where the Lechitic Gate was located. From there, the moat followed what is now Kostyol Street, skirting St. Michael's Monastery and continuing along today's Zhytomyr Street toward the Jewish Gates (at ). From there, the fortification stretched what is now Yaroslaviv Val ("Yaroslav's Rampart") Street back to the Southern Gate.
Links: a. Bolesaw I the Brave b. Maidan Nezalezhnosti c. Bolesaw I the Brave d. Lechites
Example Output: a

Example Input: Question: What year did the player who scored four goals against Rad Belgrade retire? Passage:In 1976, led by coach Dragan Bojovic, the club won the second league and again provides a placement in the elite, thanks to the four goals by Jovica Skoro, three by Milomir Jakovljevic and one by Dragisa Cuslovic, which brought the decisive 82 victory over Rad Belgrade, but they relegated again in the same season. In the season 197879, they joined the Yugoslav First League, and in that season, Yugoslav powerhouse Partizan suffered a sensational 30 home defeat from Napredak. In the season 197980, led by coach Tomislav Kaloperovic, Napredak finished the championship as 4th and this in front of several Yugoslav top clubs, and qualified finally for the first time for a European competition, the 198081 UEFA Cup season, but they were eliminated already in the first round by Eastern Germany's club Dynamo Dresden. It got even worse, because in the same season the club finished the league unexpectedly in the last place and relegated to the Yugoslav Second League and competed there until 1988. In the season 198788, Napredak won the East Division of the second league and was promoted to the top tier, but the club could not keep in the first league and relegated for the third time in its history again in the debut season. Napredak remain in the second league until the season 199192, the last season of the Socialist Federal Republic of Yugoslavia, and was one of the clubs, which were member of the newly founded First League of the Federal Republic of Yugoslavia. In 1993, Napredak achieved a good six place, but the subsequent 199394 season, they relegated to the second league.
Links: a. Dynamo Dresden b. Jovica Skoro c. 198081 UEFA Cup d. 197879 Yugoslav First League
Example Output: b

Example Input: Question: Who directed the Stephen King tele-movie where Wiles worked as an extra? Passage:In 1990, Wiles began to pursue an interest in film-making, working on the set of the film Mr. and Mrs. Bridge, filming on location in Kansas City. Not long after, the Stephen King tele-movie, Sometimes They Come Back, came to town and he worked on the crew as well as appearing in scenes as an extra. After forming some connections while working on these films, Wiles ventured to Los Angeles where he appeared in commercials before landing the lead in an after-school special. In 1994, he had a part in the Bon Jovi music video "Always". 1994 also gave him his first lead role, in the indie movie WindRunner, appearing with Margot Kidder and Russell Means. In 1995, Wiles made the first of 32 appearances in Beverly Hills, 90210 as Colin Robbins, a role which gained him some note in Hollywood. In 1999, Wiles garnered the role of Maurice 'Bosco' Boscorelli in the television drama Third Watch; he appeared in all six seasons of the show from 1999-2005.
Links: a. Sometimes They Come Back (film) b. Mr. and Mrs. Bridge c. Sometimes They Come Back (film) d. Sometimes They Come Back (film)
Example Output:
a