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 Rudy Vallee when he reached number 15 on the Billboard charts? Passage:Rudy Vallee was the first artist to make the charts in Billboard magazine with "As Time Goes By" when he took the song to number 15 in 1931, but after the song was featured in the film Casablanca his recording was reissued and spent four weeks at number one in 1943. "Begin the Beguine" was first put on the charts by Xavier Cugat & His Waldorf-Astoria Orchestra with Don Reid on vocal for two weeks in 1935 when it reached number 13. Patti Austin's "We're in Love" made it to number 90 on the magazine's R&B chart in February 1978, and the Expanded Edition CD bonus track "I Never Said I Love You" was first recorded by Barbara Mandrell for her 1976 album Midnight Angel but was a number 84 pop hit for Orsa Lia that also spent a week at number one on the magazine's Easy Listening chart in 1979.
 Links: a. Waldorf Astoria New York b. Casablanca (film) c. Barbara Mandrell d. Rudy Vallée
Example Output: d

Example Input: Question: How many years after the medical center was named after his father did Reed die in the same center? Passage:Walter Lawrence Reed (4 December 1877 – 1 May 1956) was a major general in the United States Army who served as Inspector General of the Army from 1 December 1935 to 23 December 1939. His father was Army Medical Corps officer Major Walter Reed, namesake of the Walter Reed Army Medical Center. He was born in Fort Apache, Arizona and moved to Washington, D.C. where he spent most of his early life. Reed fought in the Spanish–American War and traveled across the country and to the Panama Canal Zone. He then began working as an inspector during World War I and became the inspector of Base Section Number 5 in February 1919 then worked in the American Expeditionary Forces office. For his work he earned the Distinguished Service Medal. Reed attended various military schools before returning to the Inspector General's department. In 1935 he became the inspector general of the United States Army. He retired in 1940, but was recalled to active duty during World War II, filling a role in the War Department until 1946. Reed died in the Walter Reed Army Medical Center in 1956.
 Links: a. Fort Apache, Arizona b. United States Army c. Panama Canal Zone d. Walter Reed Army Medical Center
Example Output: d

Example Input: Question: What country was Aleksander Cybulski's youth level local team located in? Passage:Cybulski started his career with in the youth levels of his local team Bałtyk Gdynia, making his debut against Lechia Gdańsk on 24 March 1980. In his first season with Bałtyk he played 5 times as the team won promotion to the I liga. In his first spell with Bałtyk he made 39 appearances scoring two goals. Cybulski then spent a season with Polonia Gdańsk before joining Lechia Gdańsk the season after. His debut for Lechia came in the Polish SuperCup which the team won by beating Lech Poznań 1-0. That season Cybulski also made 26 appearances scoring two goals as Lechia won the II liga, and played in Lechia's first ever European game in the UEFA Cup Winners' Cup against Juventus. The next four seasons Lechia played in the top division of Poland, with Cybulski making a total of 97 appearances in the I liga. Lechia were relegated at the end of the 1987–88 season to the II liga, with Cybulski leaving the club two seasons later. In his first spell with Lechia he played a total 176 league appearances for Lechia contributing 9 goals for the team. He then spent two seasons in Sweden with Hudiksvalls FF returning to Lechia Gdańsk for a season in 1992 making a further 18 league appearances. In total for Lechia Gdańsk Cybulski made 211 appearances and scored 9 goals. He then had a season in Belgium with CS Jemappes, returning to Poland the season after joining Pomezania Malbork. He played with Pomezania in the 1994–95 season with the club finishing 9th in the II liga, the clubs highest ever league finish. After that historic season for Pomezania he returned to Bałtyk Gdynia, making a further 103 appearances over the next 5 seasons with Bałtyk, with a short 6-month spell at Wierzyca Starogard Gdański in the middle of that 5 season spell. In total at Bałtyk Gdynia he made 142 league appearances scoring 9 times for the club. Cybulski spent the next five seasons with Cartusia Kartuzy in the fourth tier, helping the club to win promotion to the III liga in his final season. He then spent time with Orzeł Trąbki Wielkie, KS Chwaszczyno, Spójnia Sadlinki, and GKS Kowale.
 Links: a. Bałtyk Gdynia b. Bałtyk Gdynia c. Lechia Gdańsk d. Ekstraklasa
Example Output:
a