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: How old was Warren Harding the year Coolidge was born? Passage:Calvin Coolidge (born John Calvin Coolidge Jr.; ; July 4, 1872 – January 5, 1933) was an American politician and lawyer who served as the 30th president of the United States from 1923 to 1929. A Republican lawyer from New England, born in Vermont, Coolidge worked his way up the ladder of Massachusetts state politics, eventually becoming governor of Massachusetts. His response to the Boston Police Strike of 1919 thrust him into the national spotlight and gave him a reputation as a man of decisive action. The next year, he was elected vice president of the United States, and he succeeded to the presidency upon the sudden death of Warren G. Harding in 1923. Elected in his own right in 1924, he gained a reputation as a small government conservative and also as a man who said very little and had a rather dry sense of humor.
 Links: a. Vice President of the United States b. Politics c. Boston Police Strike d. Warren G. Harding
Example Output: d

Example Input: Question: Who was the manager for the Tampa Bay Rays when Travis scored his first career triple? Passage:In late April 2016, Travis began taking part in extended spring training games. He was assigned to the Advanced-A Dunedin Blue Jays for rehab on May 13. On May 18, he was promoted to the Triple-A Buffalo Bisons to continue rehabbing. On May 25, Travis was activated off the disabled list by the Blue Jays and called up. He hit a walk-off infield single on May 28 to help the Blue Jays defeat the Boston Red Sox 10–9. On August 5, Travis hit two home runs in a game for the first time in his career. Leading off against the Kansas City Royals, Travis hit a solo home run to give the Blue Jays an early 1–0 lead. In the ninth inning, he hit another solo home run off Kelvin Herrera to lift Toronto to a 4–3 victory. On August 8, Travis hit his first career triple, which came as part of a four-hit game against the Tampa Bay Rays. Following a game on August 31, the Blue Jays optioned Travis to the Rookie-Advanced Bluefield Blue Jays. The move was made to allow Josh Thole to be re-signed and have postseason eligibility. As the Bluefield season would end on September 1, Travis could be immediately recalled by Toronto afterward, bypassing the ten-day waiting period. Travis was recalled by the Blue Jays on September 2. He finished the season hitting .300 with 11 home runs and 50 RBI in 101 games. Travis played in the Wild Card Game and the first game of the American League Division Series, but missed the remainder of the ALDS with a bone bruise in his right knee. He played in the first game of the Championship Series, but left in the fifth inning after reaggravating his knee injury. On October 15, Travis was removed from the ALCS roster due to injury, and replaced by Justin Smoak. In accordance with MLB rules, Travis was ruled ineligible to return for the postseason, ending his season. On November 18, he underwent right knee surgery to remove a small flap of cartilage, and was expected to be ready for spring training.
 Links: a. Dunedin Blue Jays b. Dunedin Blue Jays c. Tampa Bay Rays d. 2016 American League Wild Card Game
Example Output: c

Example Input: Question: Who did Nikolay Novosiltsev work for? Passage:In 1817, while still a student, Mickiewicz, Tomasz Zan and other friends had created a secret organization, the Philomaths. The group focused on self-education but had ties to a more radical, clearly pro-Polish-independence student group, the Filaret Association. An investigation of secret student organizations by Nikolay Novosiltsev, begun in early 1823, led to the arrests of a number of students and ex-student activists including Mickiewicz, who was taken into custody and imprisoned at Vilnius' Basilian monastery in late 1823 or early 1824 (sources disagree as to the date). After investigation into his political activities, specifically his membership in the Philomaths, in 1824 Mickiewicz was banished to central Russia. Within a few hours of receiving the decree on 22 October 1824, he penned a poem into an album belonging to Salomea Bécu, the mother of Juliusz Słowacki. (In 1975 this poem was set to music in Polish and Russian by Soviet composer David Tukhmanov.) Mickiewicz crossed the border into Russia about 11 November 1824, arriving in Saint Petersburg later that month. He would spend most of the next five years in Saint Petersburg and Moscow, except for a notable 1824 to 1825 excursion to Odessa, then on to Crimea. That visit, from February to November 1825, inspired a notable collection of sonnets (some love sonnets, and a series known as Crimean Sonnets, published a year later).
 Links: a. Juliusz Słowacki b. Odessa c. Sonnet d. Nikolay Novosiltsev
Example Output:
d