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.

[EX Q]: Question: In which modern city is the castle where Della Torre was imprisoned located? Passage:Still in Montefiascone, near Viterbo, where he received Pope's appointment, Ottone marched to Arona on 1 April 1263, where he met several nobles fled by Milan for their opposition to Della Torre. Informed on Ottone's presence in Lombardy, Martino sent his troops to put Arona under siege. Ottone, who occupied the near Rocca of Angera, was forced to surrender on 5 May 1263. Returned in Montefiascone, Ottone lost his powerful ally Urban IV, died on October 1264. Della Torre, however, never get Raimondo formal appointment, and after Martino's death, the once loyal Pallavicino family switched side to Visconti, scheming the assassination of Paganino della Torre, podestà of Vercelli, on January 1266. In response, the new lord of Milan Napoleone della Torre executed 53 nobles, suspected of conjuring. This vicious act undermined Della Torre's grab on Milan, aggravated by Pope Gregory X, a Visconti of Piacenza, who in 1273 confirmed Ottone Visconti as legal Archbishop of Milan. Napoleone della Torre reacted exiling all noble families who don't supported him, causing the formation of an émigré coalition in Novara and Pavia. Using their financial and military support, Ottone's nephew Teobaldo Visconti led an army in Vercelli, occupying Castelseprio. Defeated by Torriani's forces, Teobaldo fled to Lurate, near Como, but after a battle in Gallarate, his last forces were defeated and he was beheaded by Napoleone della Torre in 1276. Ottone, returned in Lombardy in the same year, recruited his supporters near Desio, where he was canon, and after a bloody battle on January 1277, Visconti emerged victorius. Napoleone della Torre was imprisoned and tortured to death in Castel Baradello, while his brother Francesco was executed after the battle. Ottone entered in Milan on 22 January 1277, becoming the first Visconti de facto ruler of the city.
 Links: a. Castello Baradello b. Pope Gregory X c. Napoleone della Torre d. Battle of Desio
[EX A]: a

[EX Q]: 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 Bolesław 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. Bolesław I the Brave b. Maidan Nezalezhnosti c. Bolesław I the Brave d. Lechites
[EX A]: a

[EX Q]: Question: Which team won the NHL's championship trophy the year after Smith's team achieved the feat in 1970? Passage:Smith was originally drafted by the Boston Bruins in the second round (7th overall) in the 1966 NHL Amateur Draft. He played in Boston from 1968–69 to 1971–72. Boston traded him in 1972 to the California Golden Seals of the NHL. He played there until the end of the next season (1972–73) when he left the NHL for the World Hockey Association (WHA) and played for the Minnesota Fighting Saints. In 1975–76 Smith returned to the NHL to play for the St. Louis Blues. He would remain with the Blues until the 1976–77 NHL season when he returned to the Boston Bruins. In 1980 Rick Smith would leave Boston to play one more NHL season split between the Detroit Red Wings (11 games) and the Washington Capitals (40 games). He won the Stanley Cup with the Boston Bruins in 1970. Rick Smith was a steady defenseman, not a scorer but a reliable part of talented teams. An important part of winning Bruin teams who worked hard in every game he participated in.
 Links: a. 1968–69 NHL season b. Detroit Red Wings c. 1971–72 NHL season d. Boston Bruins
[EX A]:
d