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: What is the seating capacity of the place where the Saracens defended their title in April 2017? Passage:Deysel signed a two-year contract to join Japanese side Toyota Verblitz at the conclusion of the 2014 Super Rugby season. On 16 March 2017, it was announced that Deysel had joined Irish Pro12 side Munster on a three-month loan as injury cover for his compatriot Jean Kleyn. On 8 April 2017, Deysel made his debut for Munster when he started against Scottish side Glasgow Warriors in a 2016–17 Pro12 fixture. Munster won 10–7, with Deysel being replaced by Peter O'Mahony in the 42nd minute. On 22 April 2017, Deysel made his European debut when he replaced Tommy O'Donnell in Munster's 2016–17 semi-final defeat at the hands of defending champions Saracens in the Aviva Stadium, Dublin. On 27 May 2017, Deysel made his final appearance for Munster when he came off the bench against Scarlets in the 2017 Pro12 Grand Final. Following the completion of his loan spell at Munster, Deysel was granted an early release from his Sharks contract and signed a two-year deal with another Irish province, this time moving to Ulster. Ulster announced on 24 October 2018, Deysel would retire from professional rugby with immediate effect.
 Links: a. Aviva Stadium b. Aviva Stadium c. Dublin d. Ulster Rugby
Example Output: a

Example Input: Question: On what date did Apollo 11 land at it's destination site? Passage: are three views of Mare Tranquillitatis on the Moon, taken by the mapping camera of the Apollo 17 mission in 1972, facing south-southwest from an average altitude of 111 km on Revolution 36 of the mission. At the left is the east side of Mare Tranquillitatis, with the craters Franz (bottom right), Lyell (dark floor, right of center), and Taruntius (upper left). The "bay" of dark mare (basalt) at left is Sinus Concordiae, with "islands" of older, light highland material. At the right is the crater Cauchy, which lies between the Rupes Cauchy and Cauchy rille. The center photo shows the central mare with craters Vitruvius (lower right) and Gardner (bottom center). At the horizon are lighter highlands at the southern margin of the mare, near the Apollo 11 landing site. The crater Jansen is visible at the edges of both the center and right photos. The right photo shows the western mare, with the craters Dawes (lower left) and the large Plinius (43 km diameter), with the Plinius Rilles in the foreground. These photos were taken within minutes of each other as the command module America orbited the Moon. The Sun elevation drops from 46 degrees at left to 30 degrees at right.
 Links: a. Apollo 11 b. Apollo 17 c. Lyell (lunar crater) d. Plinius (crater)
Example Output: a

Example Input: Question: What is the current population of the city where the Chinese Revolutionary party was founded? Passage:The Republic of China was founded by the Kuomintang (KMT) leader Dr. Sun Yat-sen in 1912. The Kuomintang's prior revolutionary political group, the Revive China Society, was founded on 24 November 1894. It later merged with various other revolutionary groups to form the Tongmenghui in 1905. In August 1911, the Tongmenghui further merged with various other political parties in Beijing to form the KMT. In July 1914, the KMT re-organized itself as the "Chinese Revolutionary Party" in Tokyo, Japan. In 1919, the party officially renamed itself as "Kuomintang of China", which literally translates to "Chinese Nationalist Party". It was China's first major political party. In 1921, the Communist Party of China (CPC) was founded by Chen Duxiu and Li Dazhao in Shanghai as a study society and an informal network. Slowly, the CPC began to grow. These were the two major political parties in China, during the time when the ROC ruled mainland China from 1911 to 1949.
 Links: a. Tokyo b. Li Dazhao c. Communist Party of China d. Shanghai
Example Output:
a