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 Input:
Question: What was the real name of the wrestler Buffalo defeated in order to win his first title in Osaka Pro? Passage:In April 1999, Yamada joined the Osaka Pro Wrestling promotion, where he began wrestling under a mask as Black Buffalo, a character inspired by the Osaka Kintetsu Buffaloes baseball team. He made his debut for the promotion at its first event on April 29, where he, Dick Togo and Violencia, forming the villainous alliance Legion of Violence (LOV), were defeated in a six-man tag team main event by Masato Yakushiji, Naohiro Hoshikawa and Super Delfin. Buffalo kept teaming with Togo for the rest of the year. On November 21, Buffalo won his first title in Osaka Pro, when he defeated Super Delfin for the UWF Super Welterweight Championship, only to lose it back to him seven days later. In early 2000, LOV was joined by Daio Quallt and Policeme~n, replacing Violencia. On May 1, Buffalo and Togo defeated Super Delfin and Super Demekin in the finals to win the 1st Anniversary Tag Tournament. In September, Buffalo took part in the inaugural Tenno-zan tournament, where he made it to the semifinals, before being eliminated by Super Delfin. After Dick Togo left Osaka Pro at the end of 2000, LOV was disbanded and replaced by the new group, FLUXxx, as a member of which Buffalo formed a new tag team named Infinity with Tsubasa. After reaching the semifinals of the 2001 Osaka Tag Festival, Buffalo and Tsubasa defeated Super Delfin and Takehiro Murahama on July 21 to win the vacant Osaka Pro Wrestling Tag Team Championship. They would lose the title to Murahama and Kaiju Zeta Mandora on August 24. The following October's Tenno-zan saw a repeat of the previous year's tournament as Buffalo was eliminated in the semifinals by Super Delfin. On January 27, 2002, Buffalo, Tsubasa and Gamma defeated Super Delfin, Super Demekin and Takehiro Murahama to win the Trios Cup Tournament. On August 25, Buffalo and Tsubasa regained the Osaka Pro Wrestling Tag Team Championship by defeating the Kishiwada Gurentai (Big Boss MA-G-MA and Daio Quallt). After a five-month reign, they would lose the title to Jyushin Thunder Liger and Takehiro Murahama on February 1, 2003.
Links: a. Magnitude Kishiwada b. Super Delfin c. Super Delfin d. Super Delfin

Ex Output:
b

Ex Input:
Question: In what city and country was the Jagdgeschwader 77 based? Passage:Born in Cologne-Lindenthal, Reinert volunteered for military service in the National Socialist Luftwaffe in 1938. Following flight training, he was posted to Jagdgeschwader 77 (JG7777th Fighter Wing). He fought in Operation Barbarossa, the German invasion of the Soviet Union, and claimed his first aerial victory on 8 August 1941. He received the Knight's Cross of the Iron Cross following his 53rd aerial victory. Accumulating further victories, he surpassed the century mark in October 1942 for which he was awarded the Knight's Cross of the Iron Cross with Oak Leaves. In November 1942, his unit was transferred to the Mediterranean theatre in support of the Afrika Korps. There, Reinert claimed 51 victories against the Western Allies. In August 1943, he was appointed Staffelkapitan (squadron leader) of 1. Staffel (1st squadron) of JG77, and in February 1944 the 8. Staffel of Jagdgeschwader 27 (JG2727th Fighter Wing) based in France. Reinert was then appointed Gruppenkommandeur (group commander) of IV. Gruppe (4th group) of JG27 and, credited with 174 aerial victories, received the Knight's Cross of the Iron Cross with Oak Leaves and Swords on 30 January 1945. He then received conversion training to the then new Messerschmitt Me 262 jet fighter and was posted to Jagdgeschwader 7 (JG77th Fighter Wing), an all-jet fighter wing.
Links: a. Jagdgeschwader b. Knight's Cross of the Iron Cross c. Jagdgeschwader 27 d. Knight's Cross of the Iron Cross

Ex Output:
a

Ex Input:
Question: What year was the theatre that MacQueen-Pope was general manager of in 1927 built? Passage:MacQueen-Pope, always known by his initials or, familiarly, as "Popie", was the eldest son of Walter George Pope and Frederica MacQueen. He was educated privately and at Tollington School. He first worked in a shipping office but became connected with the theatre as private secretary to George Dance, the playwright, manager and theatrical philanthropist. He tried his hand as a playwright, with limited success: The Times was dismissive of his short play, The Punctual Sex, in 1919. Sir Alfred Butt appointed him business manager at the Queen's Theatre, and after holding similar posts at other West End theatres, and holding the post of manager and secretary of Alexandra Palace from 1922 to 1925, he was appointed general manager of the Duke of York's Theatre in 1927, and was put in charge of the new Whitehall Theatre before it opened in 1930. The Times said of his career, "it was as press representative at the Palladium in 1925 that he began to develop his special talent for passing on to others ... his love and knowledge of the theatre generally and in particular of Drury Lane, of the Haymarket (Theatre of Perfection) and of the Gaiety (Theatre of Enchantment)."
Links: a. Duke of York's Theatre b. Duke of York's Theatre c. Gaiety Theatre, London d. Sondheim Theatre

Ex Output:
a