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.

Input: Consider Input: Question: What was the combined age of Teatro dell'Opera di Roma and Teatro di San Carlo when Simone Alaimo first performed there? Passage:A native of Villabate, Alaimo studied at the Palermo Conservatory and then the L'Accademia di La Scala in Milan before making his début in 1977 at the Teatro Fraschini in Pavia as the title hero in Gaetano Donizetti's Don Pasquale. Shortly thereafter he joined the roster of singers at the Teatro Massimo in his home city. In 1980 he made his first appearance at the Piccola Scala in a production of Carlo Evasio Soliva's La testa di bronzo and performed for the first time at the Maggio Musicale Fiorentino as Radamanto in Giulio Caccini's Euridice. That year also marked his debut at the Festival de Ópera de Las Palmas and the Teatro Carlo Felice, two places he has sung with some frequency. In 1982 he performed for the first time at the Teatro di San Carlo, the Teatro dell'Opera di Roma, the Liceu, and the Rossini Opera Festival. He sang the role of Mustafà in Gioachino Rossini's L'italiana in Algeri for his United States debut at the Lyric Opera of Chicago in 1987. He reprised the role the following year for his first performance in the United Kingdom at the Royal Opera, London.
 Links: a. Liceu b. Rossini Opera Festival c. Teatro di San Carlo d. Maggio Musicale Fiorentino

Output: c


Input: Consider Input: Question: How long had Juan Carlos Onganía been leading Argentina by the year La balsa was written? Passage:"La balsa" (; Spanish for "the raft") is the debut single by the Argentine band Los Gatos, released on July 3, 1967 on Vik, a subsidiary of RCA Victor. Formed in 1967 after the disbandment of Los Gatos Salvajes, Los Gatos were the house band of the bar La Cueva, which became a popular meeting place for rock enthusiasts and the birthplace of Argentine rock—known locally as rock nacional (Spanish for "national rock"). During the mid-to-late 1960s, Buenos Aires was experiencing a cultural blossoming characterized by innovations in modern art, literature and cinema, largely driven by a burgeoning youth subculture that adhered to the countercultural phenomenon of the decade. The underground had its center in La Cueva, Plaza Francia and the Torcuato di Tella Institute, and identified with British Invasion music and the sexual revolution. "La balsa" was written by Litto Nebbia—lead vocalist of the band—and Tanguito (credited as Ramsés) on May 2, 1967, in the men's toilet of La Perla de Once, another bar frequented by the group. At the time, Argentina was under a military dictatorship led by Juan Carlos Onganía, which regularly imprisoned and persecuted these young bohemians.
 Links: a. British Invasion b. Juan Carlos Onganía c. Argentine rock d. Tanguito

Output: b


Input: Consider Input: Question: Who was the head manager of the team at the time that Pijper raced for in 2007 in the Elite League? Passage:Born in Dokkum, Netherlands, Pijper first rode a motorbike at the age of five. He was a successful long track rider before starting his speedway career. He made his debut in British speedway in 2002 with Edinburgh Monarchs, staying with the team until 2007 in a spell that included a Premier League title in 2003. In 2004 he won the European Grasstrack Championship at Eenrum. In 2007 he moved up to the Elite League with Wolverhampton Wolves, but after losing his place in the team returned to the Monarchs for a short spell, later moving to Berwick Bandits. He lost his team place once again, but later that season won the European Grasstrack Championship for a second time. He joined Elite League team Swindon Robins in 2008, but lost his place in June, going on to a spell with Mildenhall Fen Tigers in the Premier League. He returned to British speedway in 2011 with Glasgow Tigers, with whom he won the Premier League in both 2011 and 2012, and also signed with Elite League Birmingham Brummies as their number eight. In 2012 he returned to the Edinburgh Monarchs team, and was part of the 2013 Premier League Four-Team Championship winning team. In 2018 he signed to ride for the Redcar Bears 
 Links: a. Wolverhampton Wolves b. Edinburgh Monarchs c. Netherlands d. Edinburgh Monarchs


Output: a