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: Was his mother still alive when Benigno Simeon Aquino III took the oath? Passage:By tradition, it is also the chief justice who swears into office the President of the Philippines. One notable deviation from that tradition came in 1986, and later again in 2010. Due to the exceptional political circumstances culminating in the People Power Revolution, on February 25, 1986, Corazon Aquino took her oath of office as President before then Associate Justice Claudio Teehankee in San Juan just minutes before Ferdinand Marcos took his own oath of office also as President before Chief Justice Ramon Aquino. Marcos fled into exile later that night. More than two decades afterwards, Benigno Simeon Aquino III followed in his mother's footsteps (with almost similar reasons) by having then Associate Justice Conchita Carpio-Morales to administer his oath of office, rather than then Chief Justice Renato Corona (who was eventually impeached halfway through Aquino's term). Six years later, in 2016, Rodrigo Duterte took his oath of office before Associate Justice Bienvenido Reyes, his classmate at San Beda College of Law, instead of Chief Justice Maria Lourdes Sereno (who would eventually be removed thru quo warranto after it was determined that she had been unlawfully holding office ab initio).
 Links: a. Ferdinand Marcos b. Corazon Aquino c. Rodrigo Duterte d. Corazon Aquino

Ex Output:
b


Ex Input:
Question: How many years did Nick Van Exel play for the Nuggets? Passage:The 1998–99 NBA season was the Nuggets' 23rd season in the National Basketball Association, and 32nd season as a franchise. During the offseason, the Nuggets acquired Nick Van Exel from the Los Angeles Lakers, and second-year guard Chauncey Billups from the Toronto Raptors. Despite the return of Antonio McDyess, who was re-signed by the team after one season with the Phoenix Suns, the Nuggets continued to struggle under new head coach Mike D'Antoni losing eight of their first nine games. Top draft pick Raef LaFrentz out of Kansas was out for the remainder of the season with a knee injury after playing just twelve games. The Nuggets finished the lockout shortened season sixth in the Midwest Division with a 14–36 record. This was also their final season playing at McNichols Sports Arena. Following the season, second-year forward Danny Fortson and Eric Williams were both traded to the Boston Celtics, and D'Antoni was fired as coach.
 Links: a. Nick Van Exel b. Raef LaFrentz c. 1997–98 Los Angeles Lakers season d. Antonio McDyess

Ex Output:
a


Ex Input:
Question: How many years did the Czech Legion fight during the Russian Civil War? Passage:After military service in the Imperial Russian Army in World War I, where he reached the rank of a colonel, he joined the 1st Polish Corps of General Józef Dowbor-Muśnicki in western Russia from December 1917 until the Germans forced its dissolution in July 1918. He helped Walerian Czuma organise 1st Kosciuszko regiment at Samara in August 1918 which later formed the 5th Rifle Division in Siberia (sometimes known as the Polish Legion or the Siberian Division) which fought alongside the Czech Legion and the White movement in the Russian Civil War. When the White government of Admiral Aleksandr Kolchak collapsed in December 1919, the Polish Legion joined the general retreat along the Trans-Siberian Railway, until it was surrounded by the Red Army east of Krasnoyarsk in early January 1920. Refusing to surrender, Rumsza led 900 officers and men on an ice march through the taiga slipping through Bolshevik forces until they reached Irkutsk. From there they managed to escape to Harbin in White-controlled Manchuria, and thence to Vladivostok. Rumsza’s force arrived at Gdańsk (Danzig) in Poland in June 1920 and volunteered to fight in the Polish-Soviet War which had just broken out. 
 Links: a. Samara b. Czechoslovak Legion c. Czechoslovak Legion d. Irkutsk

Ex Output:

b